61243273743 has 16 divisors (see below), whose sum is σ = 85962021120. Its totient is φ = 38677015296.

The previous prime is 61243273733. The next prime is 61243273753. The reversal of 61243273743 is 34737234216.

It is an interprime number because it is at equal distance from previous prime (61243273733) and next prime (61243273753).

It is not a de Polignac number, because 61243273743 - 2²⁶ = 61176164879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61243273695 and 61243273704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61243273723) 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, 903046 + ... + 968492.

It is an arithmetic number, because the mean of its divisors is an integer number (5372626320).

Almost surely, 2^61243273743 is an apocalyptic number.

61243273743 is a deficient number, since it is larger than the sum of its proper divisors (24718747377).

61243273743 is a wasteful number, since it uses less digits than its factorization.

61243273743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81886.

The product of its digits is 508032, while the sum is 42.

The spelling of 61243273743 in words is "sixty-one billion, two hundred forty-three million, two hundred seventy-three thousand, seven hundred forty-three".