77074074044 has 24 divisors (see below), whose sum is σ = 148598268336. Its totient is φ = 34686800000.

The previous prime is 77074074019. The next prime is 77074074083. The reversal of 77074074044 is 44047047077.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 77074073986 and 77074074004.

It is a congruent number.

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, 8667257 + ... + 8676144.

It is an arithmetic number, because the mean of its divisors is an integer number (6191594514).

Almost surely, 2^77074074044 is an apocalyptic number.

It is an amenable number.

77074074044 is a deficient number, since it is larger than the sum of its proper divisors (71524194292).

77074074044 is a wasteful number, since it uses less digits than its factorization.

77074074044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17343517 (or 17343515 counting only the distinct ones).

The product of its (nonzero) digits is 614656, while the sum is 44.

Adding to 77074074044 its reverse (44047047077), we get a palindrome (121121121121).

The spelling of 77074074044 in words is "seventy-seven billion, seventy-four million, seventy-four thousand, forty-four".