6115921493 has 4 divisors (see below), whose sum is σ = 6671914368. Its totient is φ = 5559928620.

The previous prime is 6115921481. The next prime is 6115921507. The reversal of 6115921493 is 3941295116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6115921493 - 2⁴ = 6115921477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6115921493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6115921423) 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, 277996421 + ... + 277996442.

It is an arithmetic number, because the mean of its divisors is an integer number (1667978592).

Almost surely, 2^6115921493 is an apocalyptic number.

It is an amenable number.

6115921493 is a deficient number, since it is larger than the sum of its proper divisors (555992875).

6115921493 is a wasteful number, since it uses less digits than its factorization.

6115921493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555992874.

The product of its digits is 58320, while the sum is 41.

The square root of 6115921493 is about 78204.3572507312. The cubic root of 6115921493 is about 1828.7484343449.

The spelling of 6115921493 in words is "six billion, one hundred fifteen million, nine hundred twenty-one thousand, four hundred ninety-three".