42692515670401 has 3 divisors (see below), whose sum is σ = 42692522204353. Its totient is φ = 42692509136450.

The previous prime is 42692515670377. The next prime is 42692515670461. The reversal of 42692515670401 is 10407651529624.

The square root of 42692515670401 is 6533951.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a de Polignac number, because none of the positive numbers 2^k-42692515670401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42692515670461) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3266976 + ... + 9800926.

Almost surely, 2^{42692515670401} is an apocalyptic number.

42692515670401 is the 6533951-st square number.

42692515670401 is the 3266976-th centered octagonal number.

It is an amenable number.

42692515670401 is a deficient number, since it is larger than the sum of its proper divisors (6533952).

42692515670401 is an frugal number, since it uses more digits than its factorization.

42692515670401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13067902 (or 6533951 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 42692515670401 in words is "forty-two trillion, six hundred ninety-two billion, five hundred fifteen million, six hundred seventy thousand, four hundred one".