487697521990 has 16 divisors (see below), whose sum is σ = 1003263473952. Its totient is φ = 167210578944.

The previous prime is 487697521979. The next prime is 487697522003. The reversal of 487697521990 is 99125796784.

It is a happy 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, 3483553659 + ... + 3483553798.

It is an arithmetic number, because the mean of its divisors is an integer number (62703967122).

Almost surely, 2^487697521990 is an apocalyptic number.

487697521990 is an abundant number, since it is smaller than the sum of its proper divisors (515565951962).

487697521990 is a wasteful number, since it uses less digits than its factorization.

487697521990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6967107471.

The product of its (nonzero) digits is 68584320, while the sum is 67.

The spelling of 487697521990 in words is "four hundred eighty-seven billion, six hundred ninety-seven million, five hundred twenty-one thousand, nine hundred ninety".