61682578677701 has 4 divisors (see below), whose sum is σ = 61683477398400. Its totient is φ = 61681679957004.

The previous prime is 61682578677691. The next prime is 61682578677749. The reversal of 61682578677701 is 10777687528616.

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 61682578677701 - 2⁶ = 61682578677637 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 (61682578677101) 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, 449257391 + ... + 449394668.

It is an arithmetic number, because the mean of its divisors is an integer number (15420869349600).

Almost surely, 2^{61682578677701} is an apocalyptic number.

It is an amenable number.

61682578677701 is a deficient number, since it is larger than the sum of its proper divisors (898720699).

61682578677701 is an equidigital number, since it uses as much as digits as its factorization.

61682578677701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898720698.

The product of its (nonzero) digits is 331914240, while the sum is 71.

The spelling of 61682578677701 in words is "sixty-one trillion, six hundred eighty-two billion, five hundred seventy-eight million, six hundred seventy-seven thousand, seven hundred one".