5951917521887 has 4 divisors (see below), whose sum is σ = 5966760209376. Its totient is φ = 5937074834400.

The previous prime is 5951917521881. The next prime is 5951917521889. The reversal of 5951917521887 is 7881257191595.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5951917521887 - 2⁴ = 5951917521871 is a prime.

It is a super-3 number, since 3×5951917521887³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5951917521881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7421343143 + ... + 7421343944.

It is an arithmetic number, because the mean of its divisors is an integer number (1491690052344).

Almost surely, 2^{5951917521887} is an apocalyptic number.

5951917521887 is a deficient number, since it is larger than the sum of its proper divisors (14842687489).

5951917521887 is a wasteful number, since it uses less digits than its factorization.

5951917521887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14842687488.

The product of its digits is 63504000, while the sum is 68.

The spelling of 5951917521887 in words is "five trillion, nine hundred fifty-one billion, nine hundred seventeen million, five hundred twenty-one thousand, eight hundred eighty-seven".