51632540264645 has 8 divisors (see below), whose sum is σ = 61962020242200. Its totient is φ = 41304050928640.

The previous prime is 51632540264633. The next prime is 51632540264653. The reversal of 51632540264645 is 54646204523615.

It can be written as a sum of positive squares in 4 ways, for example, as 6957192247201 + 44675348017444 = 2637649^2 + 6683962^2 .

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

It is not a de Polignac number, because 51632540264645 - 2²⁴ = 51632523487429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247545716 + ... + 247754205.

It is an arithmetic number, because the mean of its divisors is an integer number (7745252530275).

Almost surely, 2^{51632540264645} is an apocalyptic number.

It is an amenable number.

51632540264645 is a deficient number, since it is larger than the sum of its proper divisors (10329479977555).

51632540264645 is a wasteful number, since it uses less digits than its factorization.

51632540264645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495320775.

The product of its (nonzero) digits is 20736000, while the sum is 53.

The spelling of 51632540264645 in words is "fifty-one trillion, six hundred thirty-two billion, five hundred forty million, two hundred sixty-four thousand, six hundred forty-five".