6857959631461 has 2 divisors, whose sum is σ = 6857959631462. Its totient is φ = 6857959631460.

The previous prime is 6857959631389. The next prime is 6857959631503. The reversal of 6857959631461 is 1641369597586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6811317022500 + 46642608961 = 2609850^2 + 215969^2 .

It is a cyclic number.

It is not a de Polignac number, because 6857959631461 - 2¹¹ = 6857959629413 is a prime.

It is a super-2 number, since 2×6857959631461² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6857959631261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3428979815730 + 3428979815731.

It is an arithmetic number, because the mean of its divisors is an integer number (3428979815731).

Almost surely, 2^{6857959631461} is an apocalyptic number.

It is an amenable number.

6857959631461 is a deficient number, since it is larger than the sum of its proper divisors (1).

6857959631461 is an equidigital number, since it uses as much as digits as its factorization.

6857959631461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 293932800, while the sum is 70.

The spelling of 6857959631461 in words is "six trillion, eight hundred fifty-seven billion, nine hundred fifty-nine million, six hundred thirty-one thousand, four hundred sixty-one".