61145461171047 has 16 divisors (see below), whose sum is σ = 94170549825792. Its totient is φ = 34877981416320.

The previous prime is 61145461171037. The next prime is 61145461171153. The reversal of 61145461171047 is 74017116454116.

It is not a de Polignac number, because 61145461171047 - 2¹⁰ = 61145461170023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61145461170987 and 61145461171005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61145461171037) 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, 54496845403 + ... + 54496846524.

It is an arithmetic number, because the mean of its divisors is an integer number (5885659364112).

Almost surely, 2^{61145461171047} is an apocalyptic number.

61145461171047 is a deficient number, since it is larger than the sum of its proper divisors (33025088654745).

61145461171047 is a wasteful number, since it uses less digits than its factorization.

61145461171047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108993691958.

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 61145461171047 in words is "sixty-one trillion, one hundred forty-five billion, four hundred sixty-one million, one hundred seventy-one thousand, forty-seven".