15492541680 has 640 divisors, whose sum is σ = 67924224000. Its totient is φ = 3217536000.

The previous prime is 15492541667. The next prime is 15492541697. The reversal of 15492541680 is 8614529451.

15492541680 is a `hidden beast` number, since 1 + 5 + 49 + 2 + 541 + 68 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8148730 + ... + 8150630.

It is an arithmetic number, because the mean of its divisors is an integer number (106131600).

Almost surely, 2^15492541680 is an apocalyptic number.

15492541680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15492541680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33962112000).

15492541680 is an abundant number, since it is smaller than the sum of its proper divisors (52431682320).

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

15492541680 is a wasteful number, since it uses less digits than its factorization.

15492541680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 15492541680 in words is "fifteen billion, four hundred ninety-two million, five hundred forty-one thousand, six hundred eighty".