257150493212 has 24 divisors (see below), whose sum is σ = 452590966800. Its totient is φ = 127840280960.

The previous prime is 257150493203. The next prime is 257150493263. The reversal of 257150493212 is 212394051752.

It is a happy number.

It is a super-2 number, since 2×257150493212² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 257150493212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504914 + ... + 877062.

It is an arithmetic number, because the mean of its divisors is an integer number (18857956950).

Almost surely, 2^257150493212 is an apocalyptic number.

It is an amenable number.

257150493212 is a deficient number, since it is larger than the sum of its proper divisors (195440473588).

257150493212 is a wasteful number, since it uses less digits than its factorization.

257150493212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373141 (or 373139 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 257150493212 in words is "two hundred fifty-seven billion, one hundred fifty million, four hundred ninety-three thousand, two hundred twelve".