4620987261 has 24 divisors (see below), whose sum is σ = 7311807360. Its totient is φ = 2788963200.

The previous prime is 4620987251. The next prime is 4620987263. The reversal of 4620987261 is 1627890264.

It is a happy number.

It is not a de Polignac number, because 4620987261 - 2²¹ = 4618890109 is a prime.

It is a super-3 number, since 3×4620987261³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4620987263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72981 + ... + 120698.

It is an arithmetic number, because the mean of its divisors is an integer number (304658640).

Almost surely, 2^4620987261 is an apocalyptic number.

It is an amenable number.

4620987261 is a deficient number, since it is larger than the sum of its proper divisors (2690820099).

4620987261 is a wasteful number, since it uses less digits than its factorization.

4620987261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193937 (or 193934 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 4620987261 is about 67977.8438978466. The cubic root of 4620987261 is about 1665.6289364348.

The spelling of 4620987261 in words is "four billion, six hundred twenty million, nine hundred eighty-seven thousand, two hundred sixty-one".