61448265954 has 64 divisors (see below), whose sum is σ = 139952292480. Its totient is φ = 19973168640.

The previous prime is 61448265919. The next prime is 61448265961. The reversal of 61448265954 is 45956284416.

It is a happy number.

61448265954 is a `hidden beast` number, since 6 + 1 + 4 + 48 + 2 + 6 + 595 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 61448265954.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5345497 + ... + 5356979.

It is an arithmetic number, because the mean of its divisors is an integer number (2186754570).

Almost surely, 2^61448265954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61448265954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69976146240).

61448265954 is an abundant number, since it is smaller than the sum of its proper divisors (78504026526).

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

61448265954 is a wasteful number, since it uses less digits than its factorization.

61448265954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13952 (or 13946 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The spelling of 61448265954 in words is "sixty-one billion, four hundred forty-eight million, two hundred sixty-five thousand, nine hundred fifty-four".