61423454727 has 48 divisors (see below), whose sum is σ = 95670687840. Its totient is φ = 37893816576.

The previous prime is 61423454689. The next prime is 61423454737. The reversal of 61423454727 is 72745432416.

61423454727 is a `hidden beast` number, since 6 + 142 + 34 + 5 + 472 + 7 = 666.

61423454727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61423454727 - 2¹¹ = 61423452679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61423454737) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 599553 + ... + 694485.

It is an arithmetic number, because the mean of its divisors is an integer number (1993139330).

Almost surely, 2^61423454727 is an apocalyptic number.

61423454727 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

61423454727 is a deficient number, since it is larger than the sum of its proper divisors (34247233113).

61423454727 is a wasteful number, since it uses less digits than its factorization.

61423454727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95072 (or 95069 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 45.

The spelling of 61423454727 in words is "sixty-one billion, four hundred twenty-three million, four hundred fifty-four thousand, seven hundred twenty-seven".