78145051967 has 8 divisors (see below), whose sum is σ = 79159315200. Its totient is φ = 77131416024.

The previous prime is 78145051909. The next prime is 78145051991. The reversal of 78145051967 is 76915054187.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78145051967 - 2¹⁸ = 78144789823 is a prime.

It is a super-2 number, since 2×78145051967² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78145051667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96584 + ... + 406962.

It is an arithmetic number, because the mean of its divisors is an integer number (9894914400).

Almost surely, 2^78145051967 is an apocalyptic number.

78145051967 is a deficient number, since it is larger than the sum of its proper divisors (1014263233).

78145051967 is a wasteful number, since it uses less digits than its factorization.

78145051967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313645.

The product of its (nonzero) digits is 2116800, while the sum is 53.

The spelling of 78145051967 in words is "seventy-eight billion, one hundred forty-five million, fifty-one thousand, nine hundred sixty-seven".