83464393557 has 16 divisors (see below), whose sum is σ = 112102341120. Its totient is φ = 55234801392.

The previous prime is 83464393513. The next prime is 83464393591. The reversal of 83464393557 is 75539346438.

It is not a de Polignac number, because 83464393557 - 2⁸ = 83464393301 is a prime.

It is a super-2 number, since 2×83464393557² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83464393497 and 83464393506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83464393357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5606638 + ... + 5621504.

It is an arithmetic number, because the mean of its divisors is an integer number (7006396320).

Almost surely, 2^83464393557 is an apocalyptic number.

It is an amenable number.

83464393557 is a deficient number, since it is larger than the sum of its proper divisors (28637947563).

83464393557 is a wasteful number, since it uses less digits than its factorization.

83464393557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28472.

The product of its digits is 32659200, while the sum is 57.

The spelling of 83464393557 in words is "eighty-three billion, four hundred sixty-four million, three hundred ninety-three thousand, five hundred fifty-seven".