84018769457 has 8 divisors (see below), whose sum is σ = 97011363456. Its totient is φ = 71273653632.

The previous prime is 84018769451. The next prime is 84018769459. The reversal of 84018769457 is 75496781048.

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 84018769457 - 2²⁸ = 83750334001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84018769396 and 84018769405.

It is not an unprimeable number, because it can be changed into a prime (84018769451) 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, 61868813 + ... + 61870170.

It is an arithmetic number, because the mean of its divisors is an integer number (12126420432).

Almost surely, 2^84018769457 is an apocalyptic number.

It is an amenable number.

84018769457 is a deficient number, since it is larger than the sum of its proper divisors (12992593999).

84018769457 is a wasteful number, since it uses less digits than its factorization.

84018769457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123739087.

The product of its (nonzero) digits is 13547520, while the sum is 59.

The spelling of 84018769457 in words is "eighty-four billion, eighteen million, seven hundred sixty-nine thousand, four hundred fifty-seven".