78296087493 has 24 divisors (see below), whose sum is σ = 121805148920. Its totient is φ = 48177763200.

The previous prime is 78296087483. The next prime is 78296087503. The reversal of 78296087493 is 39478069287.

78296087493 is a `hidden beast` number, since 7 + 8 + 2 + 9 + 60 + 87 + 493 = 666.

It is an interprime number because it is at equal distance from previous prime (78296087483) and next prime (78296087503).

It can be written as a sum of positive squares in 4 ways, for example, as 1740391524 + 76555695969 = 41718^2 + 276687^2 .

It is not a de Polignac number, because 78296087493 - 2⁴ = 78296087477 is a prime.

It is a super-2 number, since 2×78296087493² (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 78296087493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78296087473) 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, 1617543 + ... + 1665243.

Almost surely, 2^78296087493 is an apocalyptic number.

It is an amenable number.

78296087493 is a deficient number, since it is larger than the sum of its proper divisors (43509061427).

78296087493 is a wasteful number, since it uses less digits than its factorization.

78296087493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61749 (or 61746 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 78296087493 in words is "seventy-eight billion, two hundred ninety-six million, eighty-seven thousand, four hundred ninety-three".