7434237681 has 12 divisors (see below), whose sum is σ = 11564369908. Its totient is φ = 4574915424.

The previous prime is 7434237661. The next prime is 7434237703. The reversal of 7434237681 is 1867324347.

It can be written as a sum of positive squares in 2 ways, for example, as 1063803456 + 6370434225 = 32616^2 + 79815^2 .

It is not a de Polignac number, because 7434237681 - 2⁷ = 7434237553 is a prime.

It is a super-2 number, since 2×7434237681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7434237661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31770130 + ... + 31770363.

Almost surely, 2^7434237681 is an apocalyptic number.

It is an amenable number.

7434237681 is a deficient number, since it is larger than the sum of its proper divisors (4130132227).

7434237681 is a wasteful number, since it uses less digits than its factorization.

7434237681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63540512 (or 63540509 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 7434237681 is about 86222.0254981290. The cubic root of 7434237681 is about 1951.6958887833.

The spelling of 7434237681 in words is "seven billion, four hundred thirty-four million, two hundred thirty-seven thousand, six hundred eighty-one".