309770901087 has 8 divisors (see below), whose sum is σ = 437323625136. Its totient is φ = 194366055552.

The previous prime is 309770901079. The next prime is 309770901133. The reversal of 309770901087 is 780109077903.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 309770901087 - 2³ = 309770901079 is a prime.

It is a super-2 number, since 2×309770901087² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 6073939237 = 309770901087 / (3 + 0 + 9 + 7 + 7 + 0 + 9 + 0 + 1 + 0 + 8 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309770901007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3036969568 + ... + 3036969669.

It is an arithmetic number, because the mean of its divisors is an integer number (54665453142).

Almost surely, 2^309770901087 is an apocalyptic number.

309770901087 is a deficient number, since it is larger than the sum of its proper divisors (127552724049).

309770901087 is a wasteful number, since it uses less digits than its factorization.

309770901087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6073939257.

The product of its (nonzero) digits is 666792, while the sum is 51.

The spelling of 309770901087 in words is "three hundred nine billion, seven hundred seventy million, nine hundred one thousand, eighty-seven".