3156398157954 has 8 divisors (see below), whose sum is σ = 6312796315920. Its totient is φ = 1052132719316.

The previous prime is 3156398157953. The next prime is 3156398157959. The reversal of 3156398157954 is 4597518936513.

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

3156398157954 is an admirable number.

It is a super-2 number, since 2×3156398157954² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3156398157953) 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, 263033179824 + ... + 263033179835.

It is an arithmetic number, because the mean of its divisors is an integer number (789099539490).

Almost surely, 2^{3156398157954} is an apocalyptic number.

3156398157954 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3156398157954 is a wasteful number, since it uses less digits than its factorization.

3156398157954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526066359664.

The product of its digits is 122472000, while the sum is 66.

The spelling of 3156398157954 in words is "three trillion, one hundred fifty-six billion, three hundred ninety-eight million, one hundred fifty-seven thousand, nine hundred fifty-four".