78350948746 has 32 divisors (see below), whose sum is σ = 145119254400. Its totient is φ = 31603739328.

The previous prime is 78350948707. The next prime is 78350948759. The reversal of 78350948746 is 64784905387.

It is a happy number.

It is a super-2 number, since 2×78350948746² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3347580 + ... + 3370903.

It is an arithmetic number, because the mean of its divisors is an integer number (4534976700).

Almost surely, 2^78350948746 is an apocalyptic number.

78350948746 is a deficient number, since it is larger than the sum of its proper divisors (66768305654).

78350948746 is a wasteful number, since it uses less digits than its factorization.

78350948746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6718523 (or 6718509 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 78350948746 in words is "seventy-eight billion, three hundred fifty million, nine hundred forty-eight thousand, seven hundred forty-six".