2137697487 has 96 divisors (see below), whose sum is σ = 3585254400. Its totient is φ = 1265932800.

The previous prime is 2137697477. The next prime is 2137697519. The reversal of 2137697487 is 7847967312.

2137697487 is a `hidden beast` number, since 2 + 1 + 3 + 76 + 97 + 487 = 666.

It is not a de Polignac number, because 2137697487 - 2¹⁴ = 2137681103 is a prime.

It is a super-3 number, since 3×2137697487³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Its product of digits (3556224) is a multiple of the sum of its prime divisors (343).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137697417) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14156862 + ... + 14157012.

It is an arithmetic number, because the mean of its divisors is an integer number (37346400).

Almost surely, 2^2137697487 is an apocalyptic number.

2137697487 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2137697487 is a deficient number, since it is larger than the sum of its proper divisors (1447556913).

2137697487 is a wasteful number, since it uses less digits than its factorization.

2137697487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 343 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 2137697487 is about 46235.2407477240. The cubic root of 2137697487 is about 1288.1964032424.

The spelling of 2137697487 in words is "two billion, one hundred thirty-seven million, six hundred ninety-seven thousand, four hundred eighty-seven".