7631849421 has 36 divisors (see below), whose sum is σ = 13237271424. Its totient is φ = 4220370000.

The previous prime is 7631849411. The next prime is 7631849447. The reversal of 7631849421 is 1249481367.

7631849421 is a `hidden beast` number, since 7 + 631 + 8 + 4 + 9 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 7631849421 - 2⁹ = 7631848909 is a prime.

It is a super-3 number, since 3×7631849421³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7631849411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 265455 + ... + 292796.

It is an arithmetic number, because the mean of its divisors is an integer number (367701984).

Almost surely, 2^7631849421 is an apocalyptic number.

It is an amenable number.

7631849421 is a deficient number, since it is larger than the sum of its proper divisors (5605422003).

7631849421 is a wasteful number, since it uses less digits than its factorization.

7631849421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558302 (or 558292 counting only the distinct ones).

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

The square root of 7631849421 is about 87360.4568497670. The cubic root of 7631849421 is about 1968.8377643838.

The spelling of 7631849421 in words is "seven billion, six hundred thirty-one million, eight hundred forty-nine thousand, four hundred twenty-one".