2087797028634 has 24 divisors (see below), whose sum is σ = 4523588290260. Its totient is φ = 695928025728.

The previous prime is 2087797028621. The next prime is 2087797028659. The reversal of 2087797028634 is 4368207977802.

It can be written as a sum of positive squares in 2 ways, for example, as 1490804370225 + 596992658409 = 1220985^2 + 772653^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4151074 + ... + 4626770.

Almost surely, 2^{2087797028634} is an apocalyptic number.

2087797028634 is an abundant number, since it is smaller than the sum of its proper divisors (2435791261626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2087797028634 is a wasteful number, since it uses less digits than its factorization.

2087797028634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719534 (or 719531 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 63.

The spelling of 2087797028634 in words is "two trillion, eighty-seven billion, seven hundred ninety-seven million, twenty-eight thousand, six hundred thirty-four".