5715616421 has 4 divisors (see below), whose sum is σ = 5728878144. Its totient is φ = 5702354700.

The previous prime is 5715616411. The next prime is 5715616453. The reversal of 5715616421 is 1246165175.

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 not a de Polignac number, because 5715616421 - 2²² = 5711422117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5715616411) 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, 6630215 + ... + 6631076.

It is an arithmetic number, because the mean of its divisors is an integer number (1432219536).

Almost surely, 2^5715616421 is an apocalyptic number.

It is an amenable number.

5715616421 is a deficient number, since it is larger than the sum of its proper divisors (13261723).

5715616421 is a wasteful number, since it uses less digits than its factorization.

5715616421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13261722.

The product of its digits is 50400, while the sum is 38.

The square root of 5715616421 is about 75601.6958870633. The cubic root of 5715616421 is about 1787.9458371562.

The spelling of 5715616421 in words is "five billion, seven hundred fifteen million, six hundred sixteen thousand, four hundred twenty-one".