30507876493 has 2 divisors, whose sum is σ = 30507876494. Its totient is φ = 30507876492.

The previous prime is 30507876479. The next prime is 30507876517. The reversal of 30507876493 is 39467870503.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23139885924 + 7367990569 = 152118^2 + 85837^2 .

It is a cyclic number.

It is not a de Polignac number, because 30507876493 - 2⁵ = 30507876461 is a prime.

It is a super-2 number, since 2×30507876493² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30507876493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30507876193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15253938246 + 15253938247.

It is an arithmetic number, because the mean of its divisors is an integer number (15253938247).

Almost surely, 2^30507876493 is an apocalyptic number.

It is an amenable number.

30507876493 is a deficient number, since it is larger than the sum of its proper divisors (1).

30507876493 is an equidigital number, since it uses as much as digits as its factorization.

30507876493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 30507876493 in words is "thirty billion, five hundred seven million, eight hundred seventy-six thousand, four hundred ninety-three".