7972690625378 has 8 divisors (see below), whose sum is σ = 11959345801260. Its totient is φ = 3986242024960.

The previous prime is 7972690625377. The next prime is 7972690625401. The reversal of 7972690625378 is 8735260962797.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7703716660249 + 268973965129 = 2775557^2 + 518627^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (7972690625377) 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, 51547343 + ... + 51701778.

Almost surely, 2^{7972690625378} is an apocalyptic number.

7972690625378 is a deficient number, since it is larger than the sum of its proper divisors (3986655175882).

7972690625378 is a wasteful number, since it uses less digits than its factorization.

7972690625378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103287732.

The product of its (nonzero) digits is 480090240, while the sum is 71.

The spelling of 7972690625378 in words is "seven trillion, nine hundred seventy-two billion, six hundred ninety million, six hundred twenty-five thousand, three hundred seventy-eight".