151535007978 has 32 divisors (see below), whose sum is σ = 304027542720. Its totient is φ = 50352259200.

The previous prime is 151535007959. The next prime is 151535007989. The reversal of 151535007978 is 879700535151.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 151535007978.

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, 3539476 + ... + 3582032.

It is an arithmetic number, because the mean of its divisors is an integer number (9500860710).

Almost surely, 2^151535007978 is an apocalyptic number.

151535007978 is an abundant number, since it is smaller than the sum of its proper divisors (152492534742).

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

151535007978 is a wasteful number, since it uses less digits than its factorization.

151535007978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44422.

The product of its (nonzero) digits is 1323000, while the sum is 51.

The spelling of 151535007978 in words is "one hundred fifty-one billion, five hundred thirty-five million, seven thousand, nine hundred seventy-eight".