9620651390 has 32 divisors (see below), whose sum is σ = 20955236544. Its totient is φ = 3104478720.

The previous prime is 9620651357. The next prime is 9620651419. The reversal of 9620651390 is 931560269.

It is a congruent number.

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, 4041101 + ... + 4043480.

It is an arithmetic number, because the mean of its divisors is an integer number (654851142).

Almost surely, 2^9620651390 is an apocalyptic number.

9620651390 is an abundant number, since it is smaller than the sum of its proper divisors (11334585154).

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

9620651390 is a wasteful number, since it uses less digits than its factorization.

9620651390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8084612.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 9620651390 is about 98084.9192791634. The cubic root of 9620651390 is about 2126.8400313603.

The spelling of 9620651390 in words is "nine billion, six hundred twenty million, six hundred fifty-one thousand, three hundred ninety".