1930894738615 has 16 divisors (see below), whose sum is σ = 2378438571168. Its totient is φ = 1504032518016.

The previous prime is 1930894738603. The next prime is 1930894738637. The reversal of 1930894738615 is 5168374980391.

It is a cyclic number.

It is not a de Polignac number, because 1930894738615 - 2¹⁵ = 1930894705847 is a prime.

It is a super-2 number, since 2×1930894738615² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14097312 + ... + 14233621.

It is an arithmetic number, because the mean of its divisors is an integer number (148652410698).

Almost surely, 2^{1930894738615} is an apocalyptic number.

1930894738615 is a deficient number, since it is larger than the sum of its proper divisors (447543832553).

1930894738615 is a wasteful number, since it uses less digits than its factorization.

1930894738615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28331298.

The product of its (nonzero) digits is 39191040, while the sum is 64.

The spelling of 1930894738615 in words is "one trillion, nine hundred thirty billion, eight hundred ninety-four million, seven hundred thirty-eight thousand, six hundred fifteen".