7378896491 has 4 divisors (see below), whose sum is σ = 7383121992. Its totient is φ = 7374670992.

The previous prime is 7378896479. The next prime is 7378896493. The reversal of 7378896491 is 1946988737.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7378896491 is a prime.

It is a super-2 number, since 2×7378896491² (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 (7378896493) 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, 2110130 + ... + 2113623.

It is an arithmetic number, because the mean of its divisors is an integer number (1845780498).

Almost surely, 2^7378896491 is an apocalyptic number.

7378896491 is a deficient number, since it is larger than the sum of its proper divisors (4225501).

7378896491 is a wasteful number, since it uses less digits than its factorization.

7378896491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225500.

The product of its digits is 18289152, while the sum is 62.

The square root of 7378896491 is about 85900.5034385713. The cubic root of 7378896491 is about 1946.8409504186.

The spelling of 7378896491 in words is "seven billion, three hundred seventy-eight million, eight hundred ninety-six thousand, four hundred ninety-one".