2686031901 has 32 divisors (see below), whose sum is σ = 4556037120. Its totient is φ = 1532088432.

The previous prime is 2686031867. The next prime is 2686031903. The reversal of 2686031901 is 1091306862.

It is not a de Polignac number, because 2686031901 - 2¹³ = 2686023709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686031903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93786 + ... + 119028.

It is an arithmetic number, because the mean of its divisors is an integer number (142376160).

Almost surely, 2^2686031901 is an apocalyptic number.

2686031901 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2686031901 is a deficient number, since it is larger than the sum of its proper divisors (1870005219).

2686031901 is a wasteful number, since it uses less digits than its factorization.

2686031901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25822 (or 25816 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 2686031901 is about 51826.9418449516. The cubic root of 2686031901 is about 1390.0712316204.

The spelling of 2686031901 in words is "two billion, six hundred eighty-six million, thirty-one thousand, nine hundred one".