11557489495490 has 32 divisors (see below), whose sum is σ = 21777019776000. Its totient is φ = 4410854683200.

The previous prime is 11557489495451. The next prime is 11557489495529. The reversal of 11557489495490 is 9459498475511.

It is an interprime number because it is at equal distance from previous prime (11557489495451) and next prime (11557489495529).

It is a Harshad number since it is a multiple of its sum of digits (71).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262528865 + ... + 262572884.

It is an arithmetic number, because the mean of its divisors is an integer number (680531868000).

Almost surely, 2^{11557489495490} is an apocalyptic number.

11557489495490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11557489495490 is a deficient number, since it is larger than the sum of its proper divisors (10219530280510).

11557489495490 is a wasteful number, since it uses less digits than its factorization.

11557489495490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525101858.

The product of its (nonzero) digits is 326592000, while the sum is 71.

The spelling of 11557489495490 in words is "eleven trillion, five hundred fifty-seven billion, four hundred eighty-nine million, four hundred ninety-five thousand, four hundred ninety".