23854157897472 has 540 divisors, whose sum is σ = 82812897247080. Its totient is φ = 6809605189632.

The previous prime is 23854157897467. The next prime is 23854157897477. The reversal of 23854157897472 is 27479875145832.

23854157897472 is a `hidden beast` number, since 2 + 3 + 8 + 5 + 4 + 1 + 578 + 9 + 7 + 47 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (23854157897467) and next prime (23854157897477).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 23854157897472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23854157897477) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1256861679 + ... + 1256880657.

Almost surely, 2^{23854157897472} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23854157897472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41406448623540).

23854157897472 is an abundant number, since it is smaller than the sum of its proper divisors (58958739349608).

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

23854157897472 is a wasteful number, since it uses less digits than its factorization.

23854157897472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20258 (or 20228 counting only the distinct ones).

The product of its digits is 948326400, while the sum is 72.

The spelling of 23854157897472 in words is "twenty-three trillion, eight hundred fifty-four billion, one hundred fifty-seven million, eight hundred ninety-seven thousand, four hundred seventy-two".