61445477354 has 16 divisors (see below), whose sum is σ = 94138564608. Its totient is φ = 30066085392.

The previous prime is 61445477347. The next prime is 61445477377. The reversal of 61445477354 is 45377454416.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150487 + ... + 1202709.

It is an arithmetic number, because the mean of its divisors is an integer number (5883660288).

Almost surely, 2^61445477354 is an apocalyptic number.

61445477354 is a deficient number, since it is larger than the sum of its proper divisors (32693087254).

61445477354 is a wasteful number, since it uses less digits than its factorization.

61445477354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64789.

The product of its digits is 5644800, while the sum is 50.

The spelling of 61445477354 in words is "sixty-one billion, four hundred forty-five million, four hundred seventy-seven thousand, three hundred fifty-four".