6527399990 has 16 divisors (see below), whose sum is σ = 12128330880. Its totient is φ = 2526735360.

The previous prime is 6527399971. The next prime is 6527400031. The reversal of 6527399990 is 999937256.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10527755 + ... + 10528374.

It is an arithmetic number, because the mean of its divisors is an integer number (758020680).

Almost surely, 2^6527399990 is an apocalyptic number.

6527399990 is a deficient number, since it is larger than the sum of its proper divisors (5600930890).

6527399990 is a wasteful number, since it uses less digits than its factorization.

6527399990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21056167.

The product of its (nonzero) digits is 8266860, while the sum is 59.

The square root of 6527399990 is about 80792.3263064012. The cubic root of 6527399990 is about 1868.8742297029.

The spelling of 6527399990 in words is "six billion, five hundred twenty-seven million, three hundred ninety-nine thousand, nine hundred ninety".