77413798438 has 8 divisors (see below), whose sum is σ = 116121969360. Its totient is φ = 38706475320.

The previous prime is 77413798403. The next prime is 77413798447. The reversal of 77413798438 is 83489731477.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120823 + ... + 411613.

It is an arithmetic number, because the mean of its divisors is an integer number (14515246170).

Almost surely, 2^77413798438 is an apocalyptic number.

77413798438 is a deficient number, since it is larger than the sum of its proper divisors (38708170922).

77413798438 is a wasteful number, since it uses less digits than its factorization.

77413798438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423902.

The product of its digits is 28449792, while the sum is 61.

The spelling of 77413798438 in words is "seventy-seven billion, four hundred thirteen million, seven hundred ninety-eight thousand, four hundred thirty-eight".