10515433990 has 8 divisors (see below), whose sum is σ = 18927781200. Its totient is φ = 4206173592.

The previous prime is 10515433979. The next prime is 10515433991. The reversal of 10515433990 is 9933451501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10515433990² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10515433991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525771690 + ... + 525771709.

It is an arithmetic number, because the mean of its divisors is an integer number (2365972650).

Almost surely, 2^10515433990 is an apocalyptic number.

10515433990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10515433990 is a deficient number, since it is larger than the sum of its proper divisors (8412347210).

10515433990 is a wasteful number, since it uses less digits than its factorization.

10515433990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051543406.

The product of its (nonzero) digits is 72900, while the sum is 40.

The spelling of 10515433990 in words is "ten billion, five hundred fifteen million, four hundred thirty-three thousand, nine hundred ninety".