61549293954 has 8 divisors (see below), whose sum is σ = 123098587920. Its totient is φ = 20516431316.

The previous prime is 61549293943. The next prime is 61549293961. The reversal of 61549293954 is 45939294516.

61549293954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

61549293954 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 61549293894 and 61549293903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5129107824 + ... + 5129107835.

It is an arithmetic number, because the mean of its divisors is an integer number (15387323490).

Almost surely, 2^61549293954 is an apocalyptic number.

61549293954 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61549293954 is a wasteful number, since it uses less digits than its factorization.

61549293954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10258215664.

The product of its digits is 10497600, while the sum is 57.

The spelling of 61549293954 in words is "sixty-one billion, five hundred forty-nine million, two hundred ninety-three thousand, nine hundred fifty-four".