7513894949 has 16 divisors (see below), whose sum is σ = 8422824960. Its totient is φ = 6643941360.

The previous prime is 7513894939. The next prime is 7513894963. The reversal of 7513894949 is 9494983157.

It is a cyclic number.

It is not a de Polignac number, because 7513894949 - 2³² = 3218927653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7513894939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79814 + ... + 146280.

It is an arithmetic number, because the mean of its divisors is an integer number (526426560).

Almost surely, 2^7513894949 is an apocalyptic number.

It is an amenable number.

7513894949 is a deficient number, since it is larger than the sum of its proper divisors (908930011).

7513894949 is a wasteful number, since it uses less digits than its factorization.

7513894949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66760.

The product of its digits is 9797760, while the sum is 59.

The square root of 7513894949 is about 86682.7257820150. The cubic root of 7513894949 is about 1958.6418945349.

The spelling of 7513894949 in words is "seven billion, five hundred thirteen million, eight hundred ninety-four thousand, nine hundred forty-nine".