9621137274 has 64 divisors (see below), whose sum is σ = 23408870400. Its totient is φ = 2574937728.

The previous prime is 9621137249. The next prime is 9621137287. The reversal of 9621137274 is 4727311269.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 3289 + ... + 138755.

It is an arithmetic number, because the mean of its divisors is an integer number (365763600).

Almost surely, 2^9621137274 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9621137274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11704435200).

9621137274 is an abundant number, since it is smaller than the sum of its proper divisors (13787733126).

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

9621137274 is a wasteful number, since it uses less digits than its factorization.

9621137274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135587.

The product of its digits is 127008, while the sum is 42.

The square root of 9621137274 is about 98087.3961016399. The cubic root of 9621137274 is about 2126.8758355938.

The spelling of 9621137274 in words is "nine billion, six hundred twenty-one million, one hundred thirty-seven thousand, two hundred seventy-four".