61307701140 has 96 divisors (see below), whose sum is σ = 202949671680. Its totient is φ = 13529972736.

The previous prime is 61307701139. The next prime is 61307701159. The reversal of 61307701140 is 4110770316.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 61307701098 and 61307701107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2504557 + ... + 2528916.

It is an arithmetic number, because the mean of its divisors is an integer number (2114059080).

Almost surely, 2^61307701140 is an apocalyptic number.

61307701140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61307701140 is an abundant number, since it is smaller than the sum of its proper divisors (141641970540).

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

61307701140 is a wasteful number, since it uses less digits than its factorization.

61307701140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033521 (or 5033519 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The spelling of 61307701140 in words is "sixty-one billion, three hundred seven million, seven hundred one thousand, one hundred forty".