89781463761 has 8 divisors (see below), whose sum is σ = 130591220064. Its totient is φ = 54413008320.

The previous prime is 89781463757. The next prime is 89781463771. The reversal of 89781463761 is 16736418798.

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

It is not a de Polignac number, because 89781463761 - 2² = 89781463757 is a prime.

It is a super-2 number, since 2×89781463761² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89781463695 and 89781463704.

It is not an unprimeable number, because it can be changed into a prime (89781463771) 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, 1360325176 + ... + 1360325241.

It is an arithmetic number, because the mean of its divisors is an integer number (16323902508).

Almost surely, 2^89781463761 is an apocalyptic number.

It is an amenable number.

89781463761 is a deficient number, since it is larger than the sum of its proper divisors (40809756303).

89781463761 is a wasteful number, since it uses less digits than its factorization.

89781463761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720650431.

The product of its digits is 12192768, while the sum is 60.

The spelling of 89781463761 in words is "eighty-nine billion, seven hundred eighty-one million, four hundred sixty-three thousand, seven hundred sixty-one".