812154241054 has 32 divisors (see below), whose sum is σ = 1317217565664. Its totient is φ = 373334520960.

The previous prime is 812154240983. The next prime is 812154241061. The reversal of 812154241054 is 450142451218.

It is a super-2 number, since 2×812154241054² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12865789 + ... + 12928759.

It is an arithmetic number, because the mean of its divisors is an integer number (41163048927).

Almost surely, 2^812154241054 is an apocalyptic number.

812154241054 is a deficient number, since it is larger than the sum of its proper divisors (505063324610).

812154241054 is a wasteful number, since it uses less digits than its factorization.

812154241054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64972.

The product of its (nonzero) digits is 51200, while the sum is 37.

The spelling of 812154241054 in words is "eight hundred twelve billion, one hundred fifty-four million, two hundred forty-one thousand, fifty-four".