761545324421 has 8 divisors (see below), whose sum is σ = 870343541184. Its totient is φ = 652748614560.

The previous prime is 761545324391. The next prime is 761545324427. The reversal of 761545324421 is 124423545167.

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

It is a de Polignac number, because none of the positive numbers 2^k-761545324421 is a prime.

It is a super-2 number, since 2×761545324421² (a number of 25 digits) 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 (761545324427) 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, 1083626 + ... + 1642356.

It is an arithmetic number, because the mean of its divisors is an integer number (108792942648).

Almost surely, 2^761545324421 is an apocalyptic number.

It is an amenable number.

761545324421 is a deficient number, since it is larger than the sum of its proper divisors (108798216763).

761545324421 is a wasteful number, since it uses less digits than its factorization.

761545324421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753451.

The product of its digits is 806400, while the sum is 44.

Adding to 761545324421 its reverse (124423545167), we get a palindrome (885968869588).

The spelling of 761545324421 in words is "seven hundred sixty-one billion, five hundred forty-five million, three hundred twenty-four thousand, four hundred twenty-one".