999988000037 has 4 divisors (see below), whose sum is σ = 1076910153900. Its totient is φ = 923065846176.

The previous prime is 999988000003. The next prime is 999988000057. The reversal of 999988000037 is 730000889999.

It is a Cunningham number, because it is equal to 999994²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147927928996 + 852060071041 = 384614^2 + 923071^2 .

It is a cyclic number.

It is not a de Polignac number, because 999988000037 - 2⁸ = 999987999781 is a prime.

It is a super-2 number, since 2×999988000037² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999988000057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38461076912 + ... + 38461076937.

It is an arithmetic number, because the mean of its divisors is an integer number (269227538475).

Almost surely, 2^999988000037 is an apocalyptic number.

It is an amenable number.

999988000037 is a deficient number, since it is larger than the sum of its proper divisors (76922153863).

999988000037 is a wasteful number, since it uses less digits than its factorization.

999988000037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76922153862.

The product of its (nonzero) digits is 8817984, while the sum is 62.

The spelling of 999988000037 in words is "nine hundred ninety-nine billion, nine hundred eighty-eight million, thirty-seven", and thus it is an aban number.