457395191720 has 16 divisors (see below), whose sum is σ = 1029139181460. Its totient is φ = 182958076672.

The previous prime is 457395191699. The next prime is 457395191723. The reversal of 457395191720 is 27191593754.

It can be written as a sum of positive squares in 2 ways, for example, as 447563676004 + 9831515716 = 669002^2 + 99154^2 .

It is a super-2 number, since 2×457395191720² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (457395191723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5717439857 + ... + 5717439936.

Almost surely, 2^457395191720 is an apocalyptic number.

457395191720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

457395191720 is an abundant number, since it is smaller than the sum of its proper divisors (571743989740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

457395191720 is a wasteful number, since it uses less digits than its factorization.

457395191720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11434879804 (or 11434879800 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 53.

The spelling of 457395191720 in words is "four hundred fifty-seven billion, three hundred ninety-five million, one hundred ninety-one thousand, seven hundred twenty".