78213700723292 has 12 divisors (see below), whose sum is σ = 137059191394440. Its totient is φ = 39053931753456.

The previous prime is 78213700723267. The next prime is 78213700723307. The reversal of 78213700723292 is 29232700731287.

78213700723292 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×78213700723292² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13229648723 + ... + 13229654634.

It is an arithmetic number, because the mean of its divisors is an integer number (11421599282870).

Almost surely, 2^{78213700723292} is an apocalyptic number.

It is an amenable number.

78213700723292 is a deficient number, since it is larger than the sum of its proper divisors (58845490671148).

78213700723292 is a wasteful number, since it uses less digits than its factorization.

78213700723292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26459304100 (or 26459304098 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 53.

The spelling of 78213700723292 in words is "seventy-eight trillion, two hundred thirteen billion, seven hundred million, seven hundred twenty-three thousand, two hundred ninety-two".