11142635457 has 16 divisors (see below), whose sum is σ = 14939081600. Its totient is φ = 7387345152.

The previous prime is 11142635429. The next prime is 11142635479. The reversal of 11142635457 is 75453624111.

It is not a de Polignac number, because 11142635457 - 2¹⁸ = 11142373313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11142635657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1666473 + ... + 1673145.

It is an arithmetic number, because the mean of its divisors is an integer number (933692600).

Almost surely, 2^11142635457 is an apocalyptic number.

It is an amenable number.

11142635457 is a deficient number, since it is larger than the sum of its proper divisors (3796446143).

11142635457 is a wasteful number, since it uses less digits than its factorization.

11142635457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9672.

The product of its digits is 100800, while the sum is 39.

The spelling of 11142635457 in words is "eleven billion, one hundred forty-two million, six hundred thirty-five thousand, four hundred fifty-seven".