9881630037 has 12 divisors (see below), whose sum is σ = 14275498380. Its totient is φ = 6586815168.

The previous prime is 9881629987. The next prime is 9881630041. The reversal of 9881630037 is 7300361889.

It is a happy number.

9881630037 is a `hidden beast` number, since 9 + 8 + 8 + 1 + 630 + 0 + 3 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9681379236 + 200250801 = 98394^2 + 14151^2 .

It is not a de Polignac number, because 9881630037 - 2⁶ = 9881629973 is a prime.

It is a super-2 number, since 2×9881630037² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9881629974 and 9881630001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9881637037) 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, 8178 + ... + 140819.

It is an arithmetic number, because the mean of its divisors is an integer number (1189624865).

Almost surely, 2^9881630037 is an apocalyptic number.

It is an amenable number.

9881630037 is a deficient number, since it is larger than the sum of its proper divisors (4393868343).

9881630037 is a wasteful number, since it uses less digits than its factorization.

9881630037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156372 (or 156369 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 9881630037 is about 99406.3883108123. The cubic root of 9881630037 is about 2145.9002483898.

The spelling of 9881630037 in words is "nine billion, eight hundred eighty-one million, six hundred thirty thousand, thirty-seven".