611421449584 has 20 divisors (see below), whose sum is σ = 1292322609720. Its totient is φ = 277918840640.

The previous prime is 611421449581. The next prime is 611421449599. The reversal of 611421449584 is 485944124116.

It is a super-2 number, since 2×611421449584² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611421449581) 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, 1736992579 + ... + 1736992930.

It is an arithmetic number, because the mean of its divisors is an integer number (64616130486).

Almost surely, 2^611421449584 is an apocalyptic number.

It is an amenable number.

611421449584 is an abundant number, since it is smaller than the sum of its proper divisors (680901160136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611421449584 is a wasteful number, since it uses less digits than its factorization.

611421449584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473985528 (or 3473985522 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 49.

The spelling of 611421449584 in words is "six hundred eleven billion, four hundred twenty-one million, four hundred forty-nine thousand, five hundred eighty-four".