61471471623 has 32 divisors (see below), whose sum is σ = 88253994240. Its totient is φ = 37917365760.

The previous prime is 61471471561. The next prime is 61471471631. The reversal of 61471471623 is 32617417416.

It is not a de Polignac number, because 61471471623 - 2⁶ = 61471471559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61471471643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7297308 + ... + 7305726.

It is an arithmetic number, because the mean of its divisors is an integer number (2757937320).

Almost surely, 2^61471471623 is an apocalyptic number.

61471471623 is a deficient number, since it is larger than the sum of its proper divisors (26782522617).

61471471623 is a wasteful number, since it uses less digits than its factorization.

61471471623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10847.

The product of its digits is 169344, while the sum is 42.

The spelling of 61471471623 in words is "sixty-one billion, four hundred seventy-one million, four hundred seventy-one thousand, six hundred twenty-three".