2487661990 has 48 divisors (see below), whose sum is σ = 4952458224. Its totient is φ = 898983360.

The previous prime is 2487661951. The next prime is 2487661993. The reversal of 2487661990 is 991667842.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2487661993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190924 + ... + 203536.

It is an arithmetic number, because the mean of its divisors is an integer number (103176213).

Almost surely, 2^2487661990 is an apocalyptic number.

2487661990 is a deficient number, since it is larger than the sum of its proper divisors (2464796234).

2487661990 is a wasteful number, since it uses less digits than its factorization.

2487661990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12805 (or 12794 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 2487661990 is about 49876.4672967122. The cubic root of 2487661990 is about 1354.9724244693.

The spelling of 2487661990 in words is "two billion, four hundred eighty-seven million, six hundred sixty-one thousand, nine hundred ninety".