2642073987 has 16 divisors (see below), whose sum is σ = 4033186560. Its totient is φ = 1507068192.

The previous prime is 2642073977. The next prime is 2642073991. The reversal of 2642073987 is 7893702462.

It is not a de Polignac number, because 2642073987 - 2⁶ = 2642073923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2642073977) 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, 99912 + ... + 123557.

It is an arithmetic number, because the mean of its divisors is an integer number (252074160).

Almost surely, 2^2642073987 is an apocalyptic number.

2642073987 is a deficient number, since it is larger than the sum of its proper divisors (1391112573).

2642073987 is a wasteful number, since it uses less digits than its factorization.

2642073987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224042.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The square root of 2642073987 is about 51401.1088109975. The cubic root of 2642073987 is about 1382.4464736908.

The spelling of 2642073987 in words is "two billion, six hundred forty-two million, seventy-three thousand, nine hundred eighty-seven".