4915194509 has 4 divisors (see below), whose sum is σ = 4918144704. Its totient is φ = 4912244316.

The previous prime is 4915194481. The next prime is 4915194523. The reversal of 4915194509 is 9054915194.

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 a de Polignac number, because none of the positive numbers 2^k-4915194509 is a prime.

It is a super-2 number, since 2×4915194509² = 48318274122607502162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4915194409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1472597 + ... + 1475930.

It is an arithmetic number, because the mean of its divisors is an integer number (1229536176).

Almost surely, 2^4915194509 is an apocalyptic number.

It is an amenable number.

4915194509 is a deficient number, since it is larger than the sum of its proper divisors (2950195).

4915194509 is a wasteful number, since it uses less digits than its factorization.

4915194509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2950194.

The product of its (nonzero) digits is 291600, while the sum is 47.

The square root of 4915194509 is about 70108.4481999138. The cubic root of 4915194509 is about 1700.2530775476.

The spelling of 4915194509 in words is "four billion, nine hundred fifteen million, one hundred ninety-four thousand, five hundred nine".