981455696951 has 8 divisors (see below), whose sum is σ = 990775796208. Its totient is φ = 972163296000.

The previous prime is 981455696941. The next prime is 981455696957. The reversal of 981455696951 is 159696554189.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-981455696951 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 (981455696957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6853370 + ... + 6995111.

It is an arithmetic number, because the mean of its divisors is an integer number (123846974526).

Almost surely, 2^981455696951 is an apocalyptic number.

981455696951 is a deficient number, since it is larger than the sum of its proper divisors (9320099257).

981455696951 is a wasteful number, since it uses less digits than its factorization.

981455696951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13849153.

The product of its digits is 104976000, while the sum is 68.

The spelling of 981455696951 in words is "nine hundred eighty-one billion, four hundred fifty-five million, six hundred ninety-six thousand, nine hundred fifty-one".