78287935932 has 36 divisors (see below), whose sum is σ = 202721203776. Its totient is φ = 25459490880.

The previous prime is 78287935927. The next prime is 78287935933. The reversal of 78287935932 is 23953978287.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×78287935932² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78287935932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78287935933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26518828 + ... + 26521779.

Almost surely, 2^78287935932 is an apocalyptic number.

It is an amenable number.

78287935932 is an abundant number, since it is smaller than the sum of its proper divisors (124433267844).

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

78287935932 is a wasteful number, since it uses less digits than its factorization.

78287935932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53040658 (or 53040653 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The spelling of 78287935932 in words is "seventy-eight billion, two hundred eighty-seven million, nine hundred thirty-five thousand, nine hundred thirty-two".