78162884758 has 16 divisors (see below), whose sum is σ = 137109646080. Its totient is φ = 32719346856.

The previous prime is 78162884719. The next prime is 78162884773. The reversal of 78162884758 is 85748826187.

It is a super-2 number, since 2×78162884758² (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 78162884758.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64918738 + ... + 64919941.

It is an arithmetic number, because the mean of its divisors is an integer number (8569352880).

Almost surely, 2^78162884758 is an apocalyptic number.

78162884758 is a deficient number, since it is larger than the sum of its proper divisors (58946761322).

78162884758 is a wasteful number, since it uses less digits than its factorization.

78162884758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129838731.

The product of its digits is 48168960, while the sum is 64.

The spelling of 78162884758 in words is "seventy-eight billion, one hundred sixty-two million, eight hundred eighty-four thousand, seven hundred fifty-eight".