1257415858011 has 8 divisors (see below), whose sum is σ = 1676602783744. Its totient is φ = 838253085480.

The previous prime is 1257415858007. The next prime is 1257415858043. The reversal of 1257415858011 is 1108585147521.

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

It is not a de Polignac number, because 1257415858011 - 2² = 1257415858007 is a prime.

It is a super-2 number, since 2×1257415858011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1257415858081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5916475 + ... + 6125316.

It is an arithmetic number, because the mean of its divisors is an integer number (209575347968).

Almost surely, 2^{1257415858011} is an apocalyptic number.

1257415858011 is a deficient number, since it is larger than the sum of its proper divisors (419186925733).

1257415858011 is a wasteful number, since it uses less digits than its factorization.

1257415858011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12076601.

The product of its (nonzero) digits is 448000, while the sum is 48.

The spelling of 1257415858011 in words is "one trillion, two hundred fifty-seven billion, four hundred fifteen million, eight hundred fifty-eight thousand, eleven".