78379019746 has 16 divisors (see below), whose sum is σ = 121714792704. Its totient is φ = 37830266784.

The previous prime is 78379019731. The next prime is 78379019749. The reversal of 78379019746 is 64791097387.

It is a super-2 number, since 2×78379019746² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78379019749) 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, 5704230 + ... + 5717953.

It is an arithmetic number, because the mean of its divisors is an integer number (7607174544).

Almost surely, 2^78379019746 is an apocalyptic number.

78379019746 is a deficient number, since it is larger than the sum of its proper divisors (43335772958).

78379019746 is a wasteful number, since it uses less digits than its factorization.

78379019746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11422305.

The product of its (nonzero) digits is 16003008, while the sum is 61.

The spelling of 78379019746 in words is "seventy-eight billion, three hundred seventy-nine million, nineteen thousand, seven hundred forty-six".