77439601811703 has 16 divisors (see below), whose sum is σ = 104033050611200. Its totient is φ = 51237584060256.

The previous prime is 77439601811687. The next prime is 77439601811729. The reversal of 77439601811703 is 30711810693477.

It is a happy number.

It is not a de Polignac number, because 77439601811703 - 2⁴ = 77439601811687 is a prime.

It is a super-2 number, since 2×77439601811703² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77439601811783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163131475 + ... + 163605492.

It is an arithmetic number, because the mean of its divisors is an integer number (6502065663200).

Almost surely, 2^{77439601811703} is an apocalyptic number.

77439601811703 is a deficient number, since it is larger than the sum of its proper divisors (26593448799497).

77439601811703 is a wasteful number, since it uses less digits than its factorization.

77439601811703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326737566.

The product of its (nonzero) digits is 5334336, while the sum is 57.

The spelling of 77439601811703 in words is "seventy-seven trillion, four hundred thirty-nine billion, six hundred one million, eight hundred eleven thousand, seven hundred three".