9953861500 has 48 divisors (see below), whose sum is σ = 23715540576. Its totient is φ = 3619584000.

The previous prime is 9953861453. The next prime is 9953861507. The reversal of 9953861500 is 51683599.

It is a super-2 number, since 2×9953861500² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9953861507) 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, 899397 + ... + 910396.

It is an arithmetic number, because the mean of its divisors is an integer number (494073762).

Almost surely, 2^9953861500 is an apocalyptic number.

It is an amenable number.

9953861500 is an abundant number, since it is smaller than the sum of its proper divisors (13761679076).

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

9953861500 is a wasteful number, since it uses less digits than its factorization.

9953861500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809823 (or 1809811 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 46.

The square root of 9953861500 is about 99769.0407892148. The cubic root of 9953861500 is about 2151.1161682348.

The spelling of 9953861500 in words is "nine billion, nine hundred fifty-three million, eight hundred sixty-one thousand, five hundred".