7681922289378 has 24 divisors (see below), whose sum is σ = 16644256609500. Its totient is φ = 2560626663264.

The previous prime is 7681922289373. The next prime is 7681922289383. The reversal of 7681922289378 is 8739822291867.

7681922289378 is a `hidden beast` number, since 7 + 68 + 192 + 2 + 2 + 8 + 9 + 378 = 666.

It is an interprime number because it is at equal distance from previous prime (7681922289373) and next prime (7681922289383).

It can be written as a sum of positive squares in 2 ways, for example, as 7681838621769 + 83667609 = 2771613^2 + 9147^2 .

It is not an unprimeable number, because it can be changed into a prime (7681922289373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2494468 + ... + 4646096.

Almost surely, 2^{7681922289378} is an apocalyptic number.

7681922289378 is an abundant number, since it is smaller than the sum of its proper divisors (8962334320122).

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

7681922289378 is a wasteful number, since it uses less digits than its factorization.

7681922289378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349986 (or 2349983 counting only the distinct ones).

The product of its digits is 292626432, while the sum is 72.

The spelling of 7681922289378 in words is "seven trillion, six hundred eighty-one billion, nine hundred twenty-two million, two hundred eighty-nine thousand, three hundred seventy-eight".