61269429773 has 4 divisors (see below), whose sum is σ = 63933318048. Its totient is φ = 58605541500.

The previous prime is 61269429757. The next prime is 61269429779. The reversal of 61269429773 is 37792496216.

61269429773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61269429773 - 2⁴ = 61269429757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61269429779) 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, 1331944103 + ... + 1331944148.

It is an arithmetic number, because the mean of its divisors is an integer number (15983329512).

Almost surely, 2^61269429773 is an apocalyptic number.

It is an amenable number.

61269429773 is a deficient number, since it is larger than the sum of its proper divisors (2663888275).

61269429773 is a wasteful number, since it uses less digits than its factorization.

61269429773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663888274.

The product of its digits is 6858432, while the sum is 56.

The spelling of 61269429773 in words is "sixty-one billion, two hundred sixty-nine million, four hundred twenty-nine thousand, seven hundred seventy-three".