6157040621 has 2 divisors, whose sum is σ = 6157040622. Its totient is φ = 6157040620.

The previous prime is 6157040609. The next prime is 6157040633. The reversal of 6157040621 is 1260407516.

It is a balanced prime because it is at equal distance from previous prime (6157040609) and next prime (6157040633).

It can be written as a sum of positive squares in only one way, i.e., 6093519721 + 63520900 = 78061^2 + 7970^2 .

It is a cyclic number.

It is not a de Polignac number, because 6157040621 - 2³⁰ = 5083298797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6157040641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3078520310 + 3078520311.

It is an arithmetic number, because the mean of its divisors is an integer number (3078520311).

Almost surely, 2^6157040621 is an apocalyptic number.

It is an amenable number.

6157040621 is a deficient number, since it is larger than the sum of its proper divisors (1).

6157040621 is an equidigital number, since it uses as much as digits as its factorization.

6157040621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 6157040621 is about 78466.8122265713. The cubic root of 6157040621 is about 1832.8376870119.

The spelling of 6157040621 in words is "six billion, one hundred fifty-seven million, forty thousand, six hundred twenty-one".