2687501061 has 24 divisors (see below), whose sum is σ = 4438738304. Its totient is φ = 1534943520.

The previous prime is 2687501041. The next prime is 2687501077. The reversal of 2687501061 is 1601057862.

It is not a de Polignac number, because 2687501061 - 2¹³ = 2687492869 is a prime.

It is a super-2 number, since 2×2687501061² = 14445323905752251442, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687501041) 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, 130320 + ... + 149526.

Almost surely, 2^2687501061 is an apocalyptic number.

2687501061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2687501061 is a deficient number, since it is larger than the sum of its proper divisors (1751237243).

2687501061 is a wasteful number, since it uses less digits than its factorization.

2687501061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21441 (or 21438 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 2687501061 is about 51841.1136165110. The cubic root of 2687501061 is about 1390.3246245927.

The spelling of 2687501061 in words is "two billion, six hundred eighty-seven million, five hundred one thousand, sixty-one".