502420536436451 has 4 divisors (see below), whose sum is σ = 503732339404032. Its totient is φ = 501108733468872.

The previous prime is 502420536436447. The next prime is 502420536436463. The reversal of 502420536436451 is 154634635024205.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 502420536436451 - 2² = 502420536436447 is a prime.

It is a super-2 number, since 2×502420536436451² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 502420536436451.

It is not an unprimeable number, because it can be changed into a prime (502420536435451) 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, 655901483216 + ... + 655901483981.

It is an arithmetic number, because the mean of its divisors is an integer number (125933084851008).

Almost surely, 2^{502420536436451} is an apocalyptic number.

502420536436451 is a deficient number, since it is larger than the sum of its proper divisors (1311802967581).

502420536436451 is a wasteful number, since it uses less digits than its factorization.

502420536436451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311802967580.

The product of its (nonzero) digits is 10368000, while the sum is 50.

The spelling of 502420536436451 in words is "five hundred two trillion, four hundred twenty billion, five hundred thirty-six million, four hundred thirty-six thousand, four hundred fifty-one".