8406834861957 has 8 divisors (see below), whose sum is σ = 12810415027776. Its totient is φ = 4803905635392.

The previous prime is 8406834861949. The next prime is 8406834861977. The reversal of 8406834861957 is 7591684386048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8406834861957 - 2³ = 8406834861949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8406834861891 and 8406834861900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8406834861947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200162734788 + ... + 200162734829.

It is an arithmetic number, because the mean of its divisors is an integer number (1601301878472).

Almost surely, 2^{8406834861957} is an apocalyptic number.

It is an amenable number.

8406834861957 is a deficient number, since it is larger than the sum of its proper divisors (4403580165819).

8406834861957 is a wasteful number, since it uses less digits than its factorization.

8406834861957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400325469627.

The product of its (nonzero) digits is 278691840, while the sum is 69.

The spelling of 8406834861957 in words is "eight trillion, four hundred six billion, eight hundred thirty-four million, eight hundred sixty-one thousand, nine hundred fifty-seven".