1937979676381 has 48 divisors (see below), whose sum is σ = 2393852590080. Its totient is φ = 1536147613440.

The previous prime is 1937979676349. The next prime is 1937979676421. The reversal of 1937979676381 is 1836769797391.

It is not a de Polignac number, because 1937979676381 - 2⁵ = 1937979676349 is a prime.

It is a super-2 number, since 2×1937979676381² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1937979676298 and 1937979676307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1937979676331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 438157336 + ... + 438161758.

It is an arithmetic number, because the mean of its divisors is an integer number (49871928960).

Almost surely, 2^{1937979676381} is an apocalyptic number.

It is an amenable number.

1937979676381 is a deficient number, since it is larger than the sum of its proper divisors (455872913699).

1937979676381 is a wasteful number, since it uses less digits than its factorization.

1937979676381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8194 (or 8177 counting only the distinct ones).

The product of its digits is 648121824, while the sum is 76.

The spelling of 1937979676381 in words is "one trillion, nine hundred thirty-seven billion, nine hundred seventy-nine million, six hundred seventy-six thousand, three hundred eighty-one".