61683457270381 has 8 divisors (see below), whose sum is σ = 61816039687584. Its totient is φ = 61550876982000.

The previous prime is 61683457270327. The next prime is 61683457270399. The reversal of 61683457270381 is 18307275438616.

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 61683457270381 - 2²⁷ = 61683323052653 is a prime.

It is a super-2 number, since 2×61683457270381² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61683457270781) 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, 66554746 + ... + 67475188.

It is an arithmetic number, because the mean of its divisors is an integer number (7727004960948).

Almost surely, 2^{61683457270381} is an apocalyptic number.

It is an amenable number.

61683457270381 is a deficient number, since it is larger than the sum of its proper divisors (132582417203).

61683457270381 is a wasteful number, since it uses less digits than its factorization.

61683457270381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064411.

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 61683457270381 in words is "sixty-one trillion, six hundred eighty-three billion, four hundred fifty-seven million, two hundred seventy thousand, three hundred eighty-one".