7461636491 has 8 divisors (see below), whose sum is σ = 7506836064. Its totient is φ = 7416480960.

The previous prime is 7461636463. The next prime is 7461636499. The reversal of 7461636491 is 1946361647.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7461636491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7461636499) 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, 367871 + ... + 387623.

It is an arithmetic number, because the mean of its divisors is an integer number (938354508).

Almost surely, 2^7461636491 is an apocalyptic number.

7461636491 is a deficient number, since it is larger than the sum of its proper divisors (45199573).

7461636491 is a wasteful number, since it uses less digits than its factorization.

7461636491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22021.

The product of its digits is 653184, while the sum is 47.

The square root of 7461636491 is about 86380.7645891144. The cubic root of 7461636491 is about 1954.0906013053.

The spelling of 7461636491 in words is "seven billion, four hundred sixty-one million, six hundred thirty-six thousand, four hundred ninety-one".