15157209280 has 56 divisors (see below), whose sum is σ = 36166988880. Its totient is φ = 6050472960.

The previous prime is 15157209247. The next prime is 15157209289. The reversal of 15157209280 is 8290275151.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (15157209289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108886 + ... + 205354.

Almost surely, 2^15157209280 is an apocalyptic number.

15157209280 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 15157209280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18083494440).

15157209280 is an abundant number, since it is smaller than the sum of its proper divisors (21009779600).

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

15157209280 is an equidigital number, since it uses as much as digits as its factorization.

15157209280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96977 (or 96967 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 15157209280 in words is "fifteen billion, one hundred fifty-seven million, two hundred nine thousand, two hundred eighty".