61427472416 has 48 divisors (see below), whose sum is σ = 131690059200. Its totient is φ = 28093863168.

The previous prime is 61427472401. The next prime is 61427472419.

61427472416 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (61427472419) 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, 1724300 + ... + 1759563.

It is an arithmetic number, because the mean of its divisors is an integer number (2743542900).

Almost surely, 2^61427472416 is an apocalyptic number.

It is an amenable number.

61427472416 is an abundant number, since it is smaller than the sum of its proper divisors (70262586784).

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

61427472416 is a wasteful number, since it uses less digits than its factorization.

61427472416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483921 (or 3483913 counting only the distinct ones).

The product of its digits is 451584, while the sum is 44.

The spelling of 61427472416 in words is "sixty-one billion, four hundred twenty-seven million, four hundred seventy-two thousand, four hundred sixteen".