61672774435 has 8 divisors (see below), whose sum is σ = 74117299680. Its totient is φ = 49264905984.

The previous prime is 61672774393. The next prime is 61672774441. The reversal of 61672774435 is 53447727616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61672774435 - 2⁹ = 61672773923 is a prime.

It is a super-2 number, since 2×61672774435² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9160495 + ... + 9167224.

It is an arithmetic number, because the mean of its divisors is an integer number (9264662460).

Almost surely, 2^61672774435 is an apocalyptic number.

61672774435 is a deficient number, since it is larger than the sum of its proper divisors (12444525245).

61672774435 is a wasteful number, since it uses less digits than its factorization.

61672774435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18328397.

The product of its digits is 5927040, while the sum is 52.

The spelling of 61672774435 in words is "sixty-one billion, six hundred seventy-two million, seven hundred seventy-four thousand, four hundred thirty-five".