61477111848 has 32 divisors (see below), whose sum is σ = 153828979200. Its totient is φ = 20474210688.

The previous prime is 61477111847. The next prime is 61477111853. The reversal of 61477111848 is 84811177416.

It is a junction number, because it is equal to n+sod(n) for n = 61477111797 and 61477111806.

It is not an unprimeable number, because it can be changed into a prime (61477111847) 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, 1107336 + ... + 1161527.

It is an arithmetic number, because the mean of its divisors is an integer number (4807155600).

Almost surely, 2^61477111848 is an apocalyptic number.

It is an amenable number.

61477111848 is an abundant number, since it is smaller than the sum of its proper divisors (92351867352).

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

61477111848 is a wasteful number, since it uses less digits than its factorization.

61477111848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270001 (or 2269997 counting only the distinct ones).

The product of its digits is 301056, while the sum is 48.

The spelling of 61477111848 in words is "sixty-one billion, four hundred seventy-seven million, one hundred eleven thousand, eight hundred forty-eight".