77734615500424 has 32 divisors (see below), whose sum is σ = 145845766609920. Its totient is φ = 38842418030976.

The previous prime is 77734615500391. The next prime is 77734615500433. The reversal of 77734615500424 is 42400551643777.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89666137 + ... + 90528919.

It is an arithmetic number, because the mean of its divisors is an integer number (4557680206560).

Almost surely, 2^{77734615500424} is an apocalyptic number.

It is an amenable number.

77734615500424 is a deficient number, since it is larger than the sum of its proper divisors (68111151109496).

77734615500424 is a wasteful number, since it uses less digits than its factorization.

77734615500424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869989 (or 869985 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 55.

The spelling of 77734615500424 in words is "seventy-seven trillion, seven hundred thirty-four billion, six hundred fifteen million, five hundred thousand, four hundred twenty-four".