61803395272 has 32 divisors (see below), whose sum is σ = 119655083520. Its totient is φ = 29895966720.

The previous prime is 61803395257. The next prime is 61803395273. The reversal of 61803395272 is 27259330816.

61803395272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61803395273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839368 + ... + 910024.

It is an arithmetic number, because the mean of its divisors is an integer number (3739221360).

Almost surely, 2^61803395272 is an apocalyptic number.

61803395272 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

61803395272 is a deficient number, since it is larger than the sum of its proper divisors (57851688248).

61803395272 is a wasteful number, since it uses less digits than its factorization.

61803395272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74221 (or 74217 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 61803395272 in words is "sixty-one billion, eight hundred three million, three hundred ninety-five thousand, two hundred seventy-two".