1257507454011 has 32 divisors (see below), whose sum is σ = 1775611041792. Its totient is φ = 790540404480.

The previous prime is 1257507454003. The next prime is 1257507454051. The reversal of 1257507454011 is 1104547057521.

It is not a de Polignac number, because 1257507454011 - 2³ = 1257507454003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1257507454001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 552340 + ... + 1679313.

It is an arithmetic number, because the mean of its divisors is an integer number (55487845056).

Almost surely, 2^{1257507454011} is an apocalyptic number.

1257507454011 is a deficient number, since it is larger than the sum of its proper divisors (518103587781).

1257507454011 is a wasteful number, since it uses less digits than its factorization.

1257507454011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231843.

The product of its (nonzero) digits is 196000, while the sum is 42.

The spelling of 1257507454011 in words is "one trillion, two hundred fifty-seven billion, five hundred seven million, four hundred fifty-four thousand, eleven".