61839284708472 has 64 divisors (see below), whose sum is σ = 158609218521600. Its totient is φ = 20079819836160.

The previous prime is 61839284708441. The next prime is 61839284708479. The reversal of 61839284708472 is 27480748293816.

It is a junction number, because it is equal to n+sod(n) for n = 61839284708397 and 61839284708406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61839284708479) 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, 47033488 + ... + 48330399.

It is an arithmetic number, because the mean of its divisors is an integer number (2478269039400).

Almost surely, 2^{61839284708472} is an apocalyptic number.

It is an amenable number.

61839284708472 is an abundant number, since it is smaller than the sum of its proper divisors (96769933813128).

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

61839284708472 is a wasteful number, since it uses less digits than its factorization.

61839284708472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95364596 (or 95364592 counting only the distinct ones).

The product of its (nonzero) digits is 260112384, while the sum is 69.

The spelling of 61839284708472 in words is "sixty-one trillion, eight hundred thirty-nine billion, two hundred eighty-four million, seven hundred eight thousand, four hundred seventy-two".