23987964546 has 192 divisors, whose sum is σ = 69385994496. Its totient is φ = 5808844800.

The previous prime is 23987964541. The next prime is 23987964551. The reversal of 23987964546 is 64546978932.

23987964546 is a `hidden beast` number, since 2 + 3 + 9 + 87 + 9 + 6 + 4 + 546 = 666.

It is an interprime number because it is at equal distance from previous prime (23987964541) and next prime (23987964551).

It is a super-2 number, since 2×23987964546² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (23987964541) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1131181 + ... + 1152191.

It is an arithmetic number, because the mean of its divisors is an integer number (361385388).

Almost surely, 2^23987964546 is an apocalyptic number.

23987964546 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 23987964546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34692997248).

23987964546 is an abundant number, since it is smaller than the sum of its proper divisors (45398029950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23987964546 is a wasteful number, since it uses less digits than its factorization.

23987964546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21097 (or 21094 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 23987964546 in words is "twenty-three billion, nine hundred eighty-seven million, nine hundred sixty-four thousand, five hundred forty-six".