84100088641 has 4 divisors (see below), whose sum is σ = 84101841712. Its totient is φ = 84098335572.

The previous prime is 84100088617. The next prime is 84100088647. The reversal of 84100088641 is 14688000148.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-84100088641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84100088594 and 84100088603.

It is not an unprimeable number, because it can be changed into a prime (84100088647) 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, 802491 + ... + 901216.

It is an arithmetic number, because the mean of its divisors is an integer number (21025460428).

Almost surely, 2^84100088641 is an apocalyptic number.

It is an amenable number.

84100088641 is a deficient number, since it is larger than the sum of its proper divisors (1753071).

84100088641 is a wasteful number, since it uses less digits than its factorization.

84100088641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753070.

The product of its (nonzero) digits is 49152, while the sum is 40.

Adding to 84100088641 its reverse (14688000148), we get a palindrome (98788088789).

The spelling of 84100088641 in words is "eighty-four billion, one hundred million, eighty-eight thousand, six hundred forty-one".