61463799040 has 144 divisors (see below), whose sum is σ = 169133707008. Its totient is φ = 20963524608.

The previous prime is 61463798999. The next prime is 61463799073. The reversal of 61463799040 is 4099736416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1711509 + ... + 1747051.

It is an arithmetic number, because the mean of its divisors is an integer number (1174539632).

Almost surely, 2^61463799040 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 61463799040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84566853504).

61463799040 is an abundant number, since it is smaller than the sum of its proper divisors (107669907968).

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

61463799040 is a wasteful number, since it uses less digits than its factorization.

61463799040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35764 (or 35750 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 61463799040 in words is "sixty-one billion, four hundred sixty-three million, seven hundred ninety-nine thousand, forty".