11621145474 has 24 divisors (see below), whose sum is σ = 25181340912. Its totient is φ = 3873377880.

The previous prime is 11621145469. The next prime is 11621145479. The reversal of 11621145474 is 47454112611.

11621145474 is a `hidden beast` number, since 11 + 62 + 114 + 5 + 474 = 666.

It is an interprime number because it is at equal distance from previous prime (11621145469) and next prime (11621145479).

It is not an unprimeable number, because it can be changed into a prime (11621145479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269577 + ... + 309699.

It is an arithmetic number, because the mean of its divisors is an integer number (1049222538).

Almost surely, 2^11621145474 is an apocalyptic number.

11621145474 is an abundant number, since it is smaller than the sum of its proper divisors (13560195438).

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

11621145474 is a wasteful number, since it uses less digits than its factorization.

11621145474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56222 (or 56219 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The spelling of 11621145474 in words is "eleven billion, six hundred twenty-one million, one hundred forty-five thousand, four hundred seventy-four".