2930951681 has 16 divisors (see below), whose sum is σ = 3440029824. Its totient is φ = 2444891904.

The previous prime is 2930951659. The next prime is 2930951713. The reversal of 2930951681 is 1861590392.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2930951681 is a prime.

It is a super-2 number, since 2×2930951681² = 17180955512713451522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2930951651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65801 + ... + 100953.

It is an arithmetic number, because the mean of its divisors is an integer number (215001864).

Almost surely, 2^2930951681 is an apocalyptic number.

It is an amenable number.

2930951681 is a deficient number, since it is larger than the sum of its proper divisors (509078143).

2930951681 is a wasteful number, since it uses less digits than its factorization.

2930951681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35480.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 2930951681 is about 54138.2644808642. The cubic root of 2930951681 is about 1431.0985870704.

The spelling of 2930951681 in words is "two billion, nine hundred thirty million, nine hundred fifty-one thousand, six hundred eighty-one".