11362551861 has 16 divisors (see below), whose sum is σ = 15705930240. Its totient is φ = 7299202560.

The previous prime is 11362551859. The next prime is 11362551901. The reversal of 11362551861 is 16815526311.

It is a happy number.

It is not a de Polignac number, because 11362551861 - 2¹ = 11362551859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11362551821) 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, 240516 + ... + 283853.

It is an arithmetic number, because the mean of its divisors is an integer number (981620640).

Almost surely, 2^11362551861 is an apocalyptic number.

It is an amenable number.

11362551861 is a deficient number, since it is larger than the sum of its proper divisors (4343378379).

11362551861 is a wasteful number, since it uses less digits than its factorization.

11362551861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524636.

The product of its digits is 43200, while the sum is 39.

The spelling of 11362551861 in words is "eleven billion, three hundred sixty-two million, five hundred fifty-one thousand, eight hundred sixty-one".