61373514231447 has 32 divisors (see below), whose sum is σ = 90842635572480. Its totient is φ = 36546662880000.

The previous prime is 61373514231443. The next prime is 61373514231461. The reversal of 61373514231447 is 74413241537316.

It is not a de Polignac number, because 61373514231447 - 2² = 61373514231443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61373514231447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61373514231443) 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, 69845422 + ... + 70718667.

It is an arithmetic number, because the mean of its divisors is an integer number (2838832361640).

Almost surely, 2^{61373514231447} is an apocalyptic number.

61373514231447 is a deficient number, since it is larger than the sum of its proper divisors (29469121341033).

61373514231447 is a wasteful number, since it uses less digits than its factorization.

61373514231447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140564335.

The product of its digits is 5080320, while the sum is 51.

The spelling of 61373514231447 in words is "sixty-one trillion, three hundred seventy-three billion, five hundred fourteen million, two hundred thirty-one thousand, four hundred forty-seven".