53423091778 has 16 divisors (see below), whose sum is σ = 91588754880. Its totient is φ = 22894032816.

The previous prime is 53423091707. The next prime is 53423091781. The reversal of 53423091778 is 87719032435.

It is a super-2 number, since 2×53423091778² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91993 + ... + 339571.

It is an arithmetic number, because the mean of its divisors is an integer number (5724297180).

Almost surely, 2^53423091778 is an apocalyptic number.

53423091778 is a deficient number, since it is larger than the sum of its proper divisors (38165663102).

53423091778 is a wasteful number, since it uses less digits than its factorization.

53423091778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263001.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 53423091778 in words is "fifty-three billion, four hundred twenty-three million, ninety-one thousand, seven hundred seventy-eight".