7938791906982 has 64 divisors (see below), whose sum is σ = 16665017048064. Its totient is φ = 2518558997760.

The previous prime is 7938791906957. The next prime is 7938791906989. The reversal of 7938791906982 is 2896091978397.

It is a junction number, because it is equal to n+sod(n) for n = 7938791906898 and 7938791906907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7938791906989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2431248 + ... + 4667820.

It is an arithmetic number, because the mean of its divisors is an integer number (260390891376).

Almost surely, 2^{7938791906982} is an apocalyptic number.

7938791906982 is an abundant number, since it is smaller than the sum of its proper divisors (8726225141082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7938791906982 is a wasteful number, since it uses less digits than its factorization.

7938791906982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236973.

The product of its (nonzero) digits is 740710656, while the sum is 78.

The spelling of 7938791906982 in words is "seven trillion, nine hundred thirty-eight billion, seven hundred ninety-one million, nine hundred six thousand, nine hundred eighty-two".