1257472256216 has 96 divisors (see below), whose sum is σ = 2863341018720. Its totient is φ = 514566497280.

The previous prime is 1257472256113. The next prime is 1257472256291. The reversal of 1257472256216 is 6126522747521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1282691 + ... + 2039666.

It is an arithmetic number, because the mean of its divisors is an integer number (29826468945).

Almost surely, 2^{1257472256216} is an apocalyptic number.

It is an amenable number.

1257472256216 is an abundant number, since it is smaller than the sum of its proper divisors (1605868762504).

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

1257472256216 is a wasteful number, since it uses less digits than its factorization.

1257472256216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322425 (or 3322410 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 50.

The spelling of 1257472256216 in words is "one trillion, two hundred fifty-seven billion, four hundred seventy-two million, two hundred fifty-six thousand, two hundred sixteen".