61853278854 has 32 divisors (see below), whose sum is σ = 124679212416. Its totient is φ = 20455722560.

The previous prime is 61853278847. The next prime is 61853278859. The reversal of 61853278854 is 45887235816.

61853278854 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 = 61853278794 and 61853278803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61853278859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6139129 + ... + 6149195.

It is an arithmetic number, because the mean of its divisors is an integer number (3896225388).

Almost surely, 2^61853278854 is an apocalyptic number.

61853278854 is an abundant number, since it is smaller than the sum of its proper divisors (62825933562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61853278854 is a wasteful number, since it uses less digits than its factorization.

61853278854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18020.

The product of its digits is 12902400, while the sum is 57.

The spelling of 61853278854 in words is "sixty-one billion, eight hundred fifty-three million, two hundred seventy-eight thousand, eight hundred fifty-four".