4902951981 has 16 divisors (see below), whose sum is σ = 6554485184. Its totient is φ = 3260041344.

The previous prime is 4902951953. The next prime is 4902952001. The reversal of 4902951981 is 1891592094.

It is not a de Polignac number, because 4902951981 - 2¹⁰ = 4902950957 is a prime.

It is a super-2 number, since 2×4902951981² = 48077876255983648722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4902951981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4902951481) 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, 2958105 + ... + 2959761.

It is an arithmetic number, because the mean of its divisors is an integer number (409655324).

Almost surely, 2^4902951981 is an apocalyptic number.

It is an amenable number.

4902951981 is a deficient number, since it is larger than the sum of its proper divisors (1651533203).

4902951981 is a wasteful number, since it uses less digits than its factorization.

4902951981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660.

The product of its (nonzero) digits is 233280, while the sum is 48.

The square root of 4902951981 is about 70021.0824038018. The cubic root of 4902951981 is about 1698.8402679550.

The spelling of 4902951981 in words is "four billion, nine hundred two million, nine hundred fifty-one thousand, nine hundred eighty-one".