61734376463809 has 8 divisors (see below), whose sum is σ = 70650620663168. Its totient is φ = 52842394154880.

The previous prime is 61734376463777. The next prime is 61734376463831. The reversal of 61734376463809 is 90836467343716.

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 61734376463809 - 2⁵ = 61734376463777 is a prime.

It is a super-2 number, since 2×61734376463809² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61734376463869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6065467152 + ... + 6065477329.

It is an arithmetic number, because the mean of its divisors is an integer number (8831327582896).

Almost surely, 2^{61734376463809} is an apocalyptic number.

It is an amenable number.

61734376463809 is a deficient number, since it is larger than the sum of its proper divisors (8916244199359).

61734376463809 is a wasteful number, since it uses less digits than its factorization.

61734376463809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12130945215.

The product of its (nonzero) digits is 329204736, while the sum is 67.

The spelling of 61734376463809 in words is "sixty-one trillion, seven hundred thirty-four billion, three hundred seventy-six million, four hundred sixty-three thousand, eight hundred nine".