7934685491 has 8 divisors (see below), whose sum is σ = 8085718080. Its totient is φ = 7783701952.

The previous prime is 7934685487. The next prime is 7934685497. The reversal of 7934685491 is 1945864397.

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

It is a cyclic number.

It is not a de Polignac number, because 7934685491 - 2² = 7934685487 is a prime.

It is a super-2 number, since 2×7934685491² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7934685497) 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, 637415 + ... + 649743.

It is an arithmetic number, because the mean of its divisors is an integer number (1010714760).

Almost surely, 2^7934685491 is an apocalyptic number.

7934685491 is a deficient number, since it is larger than the sum of its proper divisors (151032589).

7934685491 is a wasteful number, since it uses less digits than its factorization.

7934685491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24525.

The product of its digits is 6531840, while the sum is 56.

The square root of 7934685491 is about 89076.8516001772. The cubic root of 7934685491 is about 1994.5422442486.

The spelling of 7934685491 in words is "seven billion, nine hundred thirty-four million, six hundred eighty-five thousand, four hundred ninety-one".