152002232978 has 18 divisors (see below), whose sum is σ = 235622047797. Its totient is φ = 73541197080.

The previous prime is 152002232971. The next prime is 152002233001. The reversal of 152002232978 is 879232200251.

It can be written as a sum of positive squares in 2 ways, for example, as 128044455889 + 23957777089 = 357833^2 + 154783^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=275683.

It is a super-3 number, since 3×152002232978³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (152002232971) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17087900 + ... + 17096792.

Almost surely, 2^152002232978 is an apocalyptic number.

152002232978 is a deficient number, since it is larger than the sum of its proper divisors (83619814819).

152002232978 is an frugal number, since it uses more digits than its factorization.

152002232978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17850 (or 8926 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 152002232978 in words is "one hundred fifty-two billion, two million, two hundred thirty-two thousand, nine hundred seventy-eight".