6857901890613 has 16 divisors (see below), whose sum is σ = 10162337067840. Its totient is φ = 4570817506992.

The previous prime is 6857901890569. The next prime is 6857901890633. The reversal of 6857901890613 is 3160981097586.

6857901890613 is a `hidden beast` number, since 6 + 8 + 5 + 7 + 9 + 0 + 1 + 8 + 9 + 0 + 613 = 666.

It is not a de Polignac number, because 6857901890613 - 2¹³ = 6857901882421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6857901890633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30917631 + ... + 31138652.

It is an arithmetic number, because the mean of its divisors is an integer number (635146066740).

Almost surely, 2^{6857901890613} is an apocalyptic number.

It is an amenable number.

6857901890613 is a deficient number, since it is larger than the sum of its proper divisors (3304435177227).

6857901890613 is a wasteful number, since it uses less digits than its factorization.

6857901890613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62060385 (or 62060379 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 6857901890613 in words is "six trillion, eight hundred fifty-seven billion, nine hundred one million, eight hundred ninety thousand, six hundred thirteen".