421510757413 has 4 divisors (see below), whose sum is σ = 421556448960. Its totient is φ = 421465065868.

The previous prime is 421510757399. The next prime is 421510757419. The reversal of 421510757413 is 314757015124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421510757413 is a prime.

It is a super-2 number, since 2×421510757413² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421510757419) 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, 22831933 + ... + 22850386.

It is an arithmetic number, because the mean of its divisors is an integer number (105389112240).

Almost surely, 2^421510757413 is an apocalyptic number.

It is an amenable number.

421510757413 is a deficient number, since it is larger than the sum of its proper divisors (45691547).

421510757413 is an equidigital number, since it uses as much as digits as its factorization.

421510757413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45691546.

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 421510757413 in words is "four hundred twenty-one billion, five hundred ten million, seven hundred fifty-seven thousand, four hundred thirteen".