78338032955 has 16 divisors (see below), whose sum is σ = 115699249344. Its totient is φ = 49585392000.

The previous prime is 78338032937. The next prime is 78338032961. The reversal of 78338032955 is 55923083387.

It is not a de Polignac number, because 78338032955 - 2¹⁰ = 78338031931 is a prime.

It is a super-2 number, since 2×78338032955² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78338032897 and 78338032906.

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, 86085296 + ... + 86086205.

It is an arithmetic number, because the mean of its divisors is an integer number (7231203084).

Almost surely, 2^78338032955 is an apocalyptic number.

78338032955 is a deficient number, since it is larger than the sum of its proper divisors (37361216389).

78338032955 is a wasteful number, since it uses less digits than its factorization.

78338032955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172171526.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 78338032955 in words is "seventy-eight billion, three hundred thirty-eight million, thirty-two thousand, nine hundred fifty-five".