84951657293 has 4 divisors (see below), whose sum is σ = 85100434848. Its totient is φ = 84802879740.

The previous prime is 84951657289. The next prime is 84951657319. The reversal of 84951657293 is 39275615948.

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 not a de Polignac number, because 84951657293 - 2² = 84951657289 is a prime.

It is a super-3 number, since 3×84951657293³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84951657233) 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, 74387921 + ... + 74389062.

It is an arithmetic number, because the mean of its divisors is an integer number (21275108712).

Almost surely, 2^84951657293 is an apocalyptic number.

It is an amenable number.

84951657293 is a deficient number, since it is larger than the sum of its proper divisors (148777555).

84951657293 is a wasteful number, since it uses less digits than its factorization.

84951657293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148777554.

The product of its digits is 16329600, while the sum is 59.

The spelling of 84951657293 in words is "eighty-four billion, nine hundred fifty-one million, six hundred fifty-seven thousand, two hundred ninety-three".