87048979990 has 32 divisors (see below), whose sum is σ = 179083172160. Its totient is φ = 29843533824.

The previous prime is 87048979987. The next prime is 87048979993. The reversal of 87048979990 is 9997984078.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87048979987) and next prime (87048979993).

It is a Harshad number since it is a multiple of its sum of digits (70).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87048979993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1626294 + ... + 1678966.

It is an arithmetic number, because the mean of its divisors is an integer number (5596349130).

Almost surely, 2^87048979990 is an apocalyptic number.

87048979990 is an abundant number, since it is smaller than the sum of its proper divisors (92034192170).

87048979990 is a wasteful number, since it uses less digits than its factorization.

87048979990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76296.

The product of its (nonzero) digits is 82301184, while the sum is 70.

The spelling of 87048979990 in words is "eighty-seven billion, forty-eight million, nine hundred seventy-nine thousand, nine hundred ninety".