61244899954 has 32 divisors (see below), whose sum is σ = 108547117056. Its totient is φ = 25361490960.

The previous prime is 61244899939. The next prime is 61244899967. The reversal of 61244899954 is 45999844216.

It is a junction number, because it is equal to n+sod(n) for n = 61244899892 and 61244899901.

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, 169329 + ... + 388795.

It is an arithmetic number, because the mean of its divisors is an integer number (3392097408).

Almost surely, 2^61244899954 is an apocalyptic number.

61244899954 is a deficient number, since it is larger than the sum of its proper divisors (47302217102).

61244899954 is a wasteful number, since it uses less digits than its factorization.

61244899954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220150.

The product of its digits is 22394880, while the sum is 61.

The spelling of 61244899954 in words is "sixty-one billion, two hundred forty-four million, eight hundred ninety-nine thousand, nine hundred fifty-four".