987249942790 has 16 divisors (see below), whose sum is σ = 1777062667968. Its totient is φ = 394897139136.

The previous prime is 987249942761. The next prime is 987249942821. The reversal of 987249942790 is 97249942789.

987249942790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1640914 + ... + 2160346.

It is an arithmetic number, because the mean of its divisors is an integer number (111066416748).

Almost surely, 2^987249942790 is an apocalyptic number.

987249942790 is a deficient number, since it is larger than the sum of its proper divisors (789812725178).

987249942790 is a wasteful number, since it uses less digits than its factorization.

987249942790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709503.

The product of its (nonzero) digits is 164602368, while the sum is 70.

The spelling of 987249942790 in words is "nine hundred eighty-seven billion, two hundred forty-nine million, nine hundred forty-two thousand, seven hundred ninety".