61761625471 has 16 divisors (see below), whose sum is σ = 76724734464. Its totient is φ = 48409638624.

The previous prime is 61761625421. The next prime is 61761625483. The reversal of 61761625471 is 17452616716.

It is a cyclic number.

It is not a de Polignac number, because 61761625471 - 2¹⁵ = 61761592703 is a prime.

It is a super-3 number, since 3×61761625471³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61761625421) 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, 3161755 + ... + 3181228.

It is an arithmetic number, because the mean of its divisors is an integer number (4795295904).

Almost surely, 2^61761625471 is an apocalyptic number.

61761625471 is a deficient number, since it is larger than the sum of its proper divisors (14963108993).

61761625471 is a wasteful number, since it uses less digits than its factorization.

61761625471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6343110.

The product of its digits is 423360, while the sum is 46.

The spelling of 61761625471 in words is "sixty-one billion, seven hundred sixty-one million, six hundred twenty-five thousand, four hundred seventy-one".