78292764296 has 8 divisors (see below), whose sum is σ = 146798933070. Its totient is φ = 39146382144.

The previous prime is 78292764289. The next prime is 78292764343. The reversal of 78292764296 is 69246729287.

It can be written as a sum of positive squares in only one way, i.e., 58363795396 + 19928968900 = 241586^2 + 141170^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×78292764296² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4893297761 + ... + 4893297776.

Almost surely, 2^78292764296 is an apocalyptic number.

It is an amenable number.

78292764296 is a deficient number, since it is larger than the sum of its proper divisors (68506168774).

78292764296 is a wasteful number, since it uses less digits than its factorization.

78292764296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9786595543 (or 9786595539 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 62.

The spelling of 78292764296 in words is "seventy-eight billion, two hundred ninety-two million, seven hundred sixty-four thousand, two hundred ninety-six".