61701504249173 has 4 divisors (see below), whose sum is σ = 61819480357248. Its totient is φ = 61583528141100.

The previous prime is 61701504249163. The next prime is 61701504249181. The reversal of 61701504249173 is 37194240510716.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61701504249173 - 2⁴ = 61701504249157 is a prime.

It is a super-2 number, since 2×61701504249173² (a number of 28 digits) contains 22 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 (61701504249163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58988053253 + ... + 58988054298.

It is an arithmetic number, because the mean of its divisors is an integer number (15454870089312).

Almost surely, 2^{61701504249173} is an apocalyptic number.

It is an amenable number.

61701504249173 is a deficient number, since it is larger than the sum of its proper divisors (117976108075).

61701504249173 is a wasteful number, since it uses less digits than its factorization.

61701504249173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117976108074.

The product of its (nonzero) digits is 1270080, while the sum is 50.

Adding to 61701504249173 its reverse (37194240510716), we get a palindrome (98895744759889).

The spelling of 61701504249173 in words is "sixty-one trillion, seven hundred one billion, five hundred four million, two hundred forty-nine thousand, one hundred seventy-three".