77838900837 has 16 divisors (see below), whose sum is σ = 106075717632. Its totient is φ = 50758853040.

The previous prime is 77838900823. The next prime is 77838900859. The reversal of 77838900837 is 73800983877.

It is not a de Polignac number, because 77838900837 - 2²³ = 77830512229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77838900877) 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, 1411693 + ... + 1465794.

It is an arithmetic number, because the mean of its divisors is an integer number (6629732352).

Almost surely, 2^77838900837 is an apocalyptic number.

It is an amenable number.

77838900837 is a deficient number, since it is larger than the sum of its proper divisors (28236816795).

77838900837 is a wasteful number, since it uses less digits than its factorization.

77838900837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877688.

The product of its (nonzero) digits is 14224896, while the sum is 60.

The spelling of 77838900837 in words is "seventy-seven billion, eight hundred thirty-eight million, nine hundred thousand, eight hundred thirty-seven".