78513383130281 has 24 divisors (see below), whose sum is σ = 86494098458880. Its totient is φ = 71215152972480.

The previous prime is 78513383130271. The next prime is 78513383130283. The reversal of 78513383130281 is 18203138331587.

It is a de Polignac number, because none of the positive numbers 2^k-78513383130281 is a prime.

It is a super-2 number, since 2×78513383130281² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78513383130283) 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, 1150530560 + ... + 1150598798.

It is an arithmetic number, because the mean of its divisors is an integer number (3603920769120).

Almost surely, 2^{78513383130281} is an apocalyptic number.

It is an amenable number.

78513383130281 is a deficient number, since it is larger than the sum of its proper divisors (7980715328599).

78513383130281 is a wasteful number, since it uses less digits than its factorization.

78513383130281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89525 (or 89514 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 78513383130281 in words is "seventy-eight trillion, five hundred thirteen billion, three hundred eighty-three million, one hundred thirty thousand, two hundred eighty-one".