152781315990 has 32 divisors (see below), whose sum is σ = 367352970336. Its totient is φ = 40666371840.

The previous prime is 152781315949. The next prime is 152781316003. The reversal of 152781315990 is 99513187251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4690527 + ... + 4722986.

It is an arithmetic number, because the mean of its divisors is an integer number (11479780323).

Almost surely, 2^152781315990 is an apocalyptic number.

152781315990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

152781315990 is an abundant number, since it is smaller than the sum of its proper divisors (214571654346).

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

152781315990 is a wasteful number, since it uses less digits than its factorization.

152781315990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9414064.

The product of its (nonzero) digits is 680400, while the sum is 51.

The spelling of 152781315990 in words is "one hundred fifty-two billion, seven hundred eighty-one million, three hundred fifteen thousand, nine hundred ninety".