61357445008 has 10 divisors (see below), whose sum is σ = 118880049734. Its totient is φ = 30678722496.

The previous prime is 61357444957. The next prime is 61357445011. The reversal of 61357445008 is 80054475316.

It can be written as a sum of positive squares in only one way, i.e., 51852754944 + 9504690064 = 227712^2 + 97492^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1917420141 + ... + 1917420172.

Almost surely, 2^61357445008 is an apocalyptic number.

It is an amenable number.

61357445008 is a deficient number, since it is larger than the sum of its proper divisors (57522604726).

61357445008 is a wasteful number, since it uses less digits than its factorization.

61357445008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834840321 (or 3834840315 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 61357445008 in words is "sixty-one billion, three hundred fifty-seven million, four hundred forty-five thousand, eight".