61534754271 has 16 divisors (see below), whose sum is σ = 93282661120. Its totient is φ = 40069141560.

The previous prime is 61534754269. The next prime is 61534754287. The reversal of 61534754271 is 17245743516.

61534754271 is a `hidden beast` number, since 6 + 1 + 5 + 34 + 7 + 542 + 71 = 666.

It is not a de Polignac number, because 61534754271 - 2¹ = 61534754269 is a prime.

It is a super-3 number, since 3×61534754271³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61534754251) 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, 26499595 + ... + 26501916.

It is an arithmetic number, because the mean of its divisors is an integer number (5830166320).

Almost surely, 2^61534754271 is an apocalyptic number.

61534754271 is a deficient number, since it is larger than the sum of its proper divisors (31747906849).

61534754271 is a wasteful number, since it uses less digits than its factorization.

61534754271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53001563 (or 53001557 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The spelling of 61534754271 in words is "sixty-one billion, five hundred thirty-four million, seven hundred fifty-four thousand, two hundred seventy-one".