5421986697961 has 8 divisors (see below), whose sum is σ = 5478346146240. Its totient is φ = 5365747549008.

The previous prime is 5421986697947. The next prime is 5421986697971. The reversal of 5421986697961 is 1697966891245.

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 5421986697961 - 2⁵ = 5421986697929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5421986697901) 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, 29984221 + ... + 30164506.

It is an arithmetic number, because the mean of its divisors is an integer number (684793268280).

Almost surely, 2^{5421986697961} is an apocalyptic number.

It is an amenable number.

5421986697961 is a deficient number, since it is larger than the sum of its proper divisors (56359448279).

5421986697961 is a wasteful number, since it uses less digits than its factorization.

5421986697961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60149663.

The product of its digits is 352719360, while the sum is 73.

The spelling of 5421986697961 in words is "five trillion, four hundred twenty-one billion, nine hundred eighty-six million, six hundred ninety-seven thousand, nine hundred sixty-one".