61854494950 has 12 divisors (see below), whose sum is σ = 115049360700. Its totient is φ = 24741797960.

The previous prime is 61854494903. The next prime is 61854494963. The reversal of 61854494950 is 5949445816.

61854494950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61854494891 and 61854494900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 618544900 + ... + 618544999.

It is an arithmetic number, because the mean of its divisors is an integer number (9587446725).

Almost surely, 2^61854494950 is an apocalyptic number.

61854494950 is a deficient number, since it is larger than the sum of its proper divisors (53194865750).

61854494950 is a wasteful number, since it uses less digits than its factorization.

61854494950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237089911 (or 1237089906 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 61854494950 in words is "sixty-one billion, eight hundred fifty-four million, four hundred ninety-four thousand, nine hundred fifty".