14551311318978 has 48 divisors (see below), whose sum is σ = 33866424100224. Its totient is φ = 4156000500960.

The previous prime is 14551311318961. The next prime is 14551311318979. The reversal of 14551311318978 is 87981311315541.

It is a super-2 number, since 2×14551311318978² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14551311318979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8222650 + ... + 9834357.

It is an arithmetic number, because the mean of its divisors is an integer number (705550502088).

Almost surely, 2^{14551311318978} is an apocalyptic number.

14551311318978 is an abundant number, since it is smaller than the sum of its proper divisors (19315112781246).

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

14551311318978 is a wasteful number, since it uses less digits than its factorization.

14551311318978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18059767 (or 18059760 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 57.

The spelling of 14551311318978 in words is "fourteen trillion, five hundred fifty-one billion, three hundred eleven million, three hundred eighteen thousand, nine hundred seventy-eight".