61429380743 has 32 divisors (see below), whose sum is σ = 66085189632. Its totient is φ = 56972124000.

The previous prime is 61429380731. The next prime is 61429380751. The reversal of 61429380743 is 34708392416.

It is a cyclic number.

It is not a de Polignac number, because 61429380743 - 2²⁶ = 61362271879 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61429380713) 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, 42335168 + ... + 42336618.

It is an arithmetic number, because the mean of its divisors is an integer number (2065162176).

Almost surely, 2^61429380743 is an apocalyptic number.

61429380743 is a deficient number, since it is larger than the sum of its proper divisors (4655808889).

61429380743 is a wasteful number, since it uses less digits than its factorization.

61429380743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 61429380743 in words is "sixty-one billion, four hundred twenty-nine million, three hundred eighty thousand, seven hundred forty-three".