78214051158508 has 24 divisors (see below), whose sum is σ = 137380588593920. Its totient is φ = 38962499374800.

The previous prime is 78214051158433. The next prime is 78214051158511. The reversal of 78214051158508 is 80585115041287.

It is a super-2 number, since 2×78214051158508² (a number of 29 digits) contains 22 as substring.

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, 1346473 + ... + 12579391.

Almost surely, 2^{78214051158508} is an apocalyptic number.

It is an amenable number.

78214051158508 is a deficient number, since it is larger than the sum of its proper divisors (59166537435412).

78214051158508 is a wasteful number, since it uses less digits than its factorization.

78214051158508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11239357 (or 11239355 counting only the distinct ones).

The product of its (nonzero) digits is 3584000, while the sum is 55.

The spelling of 78214051158508 in words is "seventy-eight trillion, two hundred fourteen billion, fifty-one million, one hundred fifty-eight thousand, five hundred eight".