61373478770 has 16 divisors (see below), whose sum is σ = 110492370648. Its totient is φ = 24544922880.

The previous prime is 61373478763. The next prime is 61373478779. The reversal of 61373478770 is 7787437316.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 56530293121 + 4843185649 = 237761^2 + 69593^2 .

It is not an unprimeable number, because it can be changed into a prime (61373478779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500609 + ... + 611028.

Almost surely, 2^61373478770 is an apocalyptic number.

61373478770 is a deficient number, since it is larger than the sum of its proper divisors (49118891878).

61373478770 is a wasteful number, since it uses less digits than its factorization.

61373478770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117165.

The product of its (nonzero) digits is 4148928, while the sum is 53.

The spelling of 61373478770 in words is "sixty-one billion, three hundred seventy-three million, four hundred seventy-eight thousand, seven hundred seventy".