2528377990 has 16 divisors (see below), whose sum is σ = 4554096048. Its totient is φ = 1010681056.

The previous prime is 2528377981. The next prime is 2528377991. The reversal of 2528377990 is 997738252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528377991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67777 + ... + 98236.

It is an arithmetic number, because the mean of its divisors is an integer number (284631003).

Almost surely, 2^2528377990 is an apocalyptic number.

2528377990 is a deficient number, since it is larger than the sum of its proper divisors (2025718058).

2528377990 is a wasteful number, since it uses less digits than its factorization.

2528377990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167543.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The square root of 2528377990 is about 50282.9791281304. The cubic root of 2528377990 is about 1362.3248136570.

The spelling of 2528377990 in words is "two billion, five hundred twenty-eight million, three hundred seventy-seven thousand, nine hundred ninety".