11257534770 has 64 divisors (see below), whose sum is σ = 28473569280. Its totient is φ = 2840660928.

The previous prime is 11257534753. The next prime is 11257534781. The reversal of 11257534770 is 7743575211.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492127 + ... + 514493.

It is an arithmetic number, because the mean of its divisors is an integer number (444899520).

Almost surely, 2^11257534770 is an apocalyptic number.

11257534770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11257534770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14236784640).

11257534770 is an abundant number, since it is smaller than the sum of its proper divisors (17216034510).

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

11257534770 is a wasteful number, since it uses less digits than its factorization.

11257534770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23279.

The product of its (nonzero) digits is 205800, while the sum is 42.

The spelling of 11257534770 in words is "eleven billion, two hundred fifty-seven million, five hundred thirty-four thousand, seven hundred seventy".