2990128815 has 12 divisors (see below), whose sum is σ = 5182890024. Its totient is φ = 1594735344.

The previous prime is 2990128789. The next prime is 2990128847. The reversal of 2990128815 is 5188210992.

It is not a de Polignac number, because 2990128815 - 2⁵ = 2990128783 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 66447307 = 2990128815 / (2 + 9 + 9 + 0 + 1 + 2 + 8 + 8 + 1 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33223609 + ... + 33223698.

It is an arithmetic number, because the mean of its divisors is an integer number (431907502).

Almost surely, 2^2990128815 is an apocalyptic number.

2990128815 is a deficient number, since it is larger than the sum of its proper divisors (2192761209).

2990128815 is a wasteful number, since it uses less digits than its factorization.

2990128815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66447318 (or 66447315 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 2990128815 is about 54682.0703247417. The cubic root of 2990128815 is about 1440.6659752259.

The spelling of 2990128815 in words is "two billion, nine hundred ninety million, one hundred twenty-eight thousand, eight hundred fifteen".