377638979799 has 4 divisors (see below), whose sum is σ = 503518639736. Its totient is φ = 251759319864.

The previous prime is 377638979779. The next prime is 377638979803. The reversal of 377638979799 is 997979836773.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 377638979799 - 2¹⁵ = 377638947031 is a prime.

It is a super-2 number, since 2×377638979799² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (377638979759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62939829964 + ... + 62939829969.

It is an arithmetic number, because the mean of its divisors is an integer number (125879659934).

Almost surely, 2^377638979799 is an apocalyptic number.

377638979799 is a deficient number, since it is larger than the sum of its proper divisors (125879659937).

377638979799 is a wasteful number, since it uses less digits than its factorization.

377638979799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125879659936.

The product of its digits is 6805279152, while the sum is 84.

The spelling of 377638979799 in words is "three hundred seventy-seven billion, six hundred thirty-eight million, nine hundred seventy-nine thousand, seven hundred ninety-nine".