61113479480 has 128 divisors (see below), whose sum is σ = 146416032000. Its totient is φ = 22892544000.

The previous prime is 61113479447. The next prime is 61113479489. The reversal of 61113479480 is 8497431116.

61113479480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61113479489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27148355 + ... + 27150605.

It is an arithmetic number, because the mean of its divisors is an integer number (1143875250).

Almost surely, 2^61113479480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61113479480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73208016000).

61113479480 is an abundant number, since it is smaller than the sum of its proper divisors (85302552520).

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

61113479480 is a wasteful number, since it uses less digits than its factorization.

61113479480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677 (or 2673 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 61113479480 in words is "sixty-one billion, one hundred thirteen million, four hundred seventy-nine thousand, four hundred eighty".