77823873242 has 16 divisors (see below), whose sum is σ = 117314809920. Its totient is φ = 38719126368.

The previous prime is 77823873229. The next prime is 77823873307. The reversal of 77823873242 is 24237832877.

It is a super-3 number, since 3×77823873242³ (a number of 34 digits) contains 333 as substring.

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, 792134 + ... + 884942.

It is an arithmetic number, because the mean of its divisors is an integer number (7332175620).

Almost surely, 2^77823873242 is an apocalyptic number.

77823873242 is a deficient number, since it is larger than the sum of its proper divisors (39490936678).

77823873242 is a wasteful number, since it uses less digits than its factorization.

77823873242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94885.

The product of its digits is 6322176, while the sum is 53.

The spelling of 77823873242 in words is "seventy-seven billion, eight hundred twenty-three million, eight hundred seventy-three thousand, two hundred forty-two".