4057391423623 has 4 divisors (see below), whose sum is σ = 4086581290120. Its totient is φ = 4028201557128.

The previous prime is 4057391423557. The next prime is 4057391423629. The reversal of 4057391423623 is 3263241937504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4057391423623 is a prime.

It is a super-2 number, since 2×4057391423623² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4057391423629) 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, 14594933040 + ... + 14594933317.

It is an arithmetic number, because the mean of its divisors is an integer number (1021645322530).

Almost surely, 2^{4057391423623} is an apocalyptic number.

4057391423623 is a deficient number, since it is larger than the sum of its proper divisors (29189866497).

4057391423623 is a wasteful number, since it uses less digits than its factorization.

4057391423623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29189866496.

The product of its (nonzero) digits is 3265920, while the sum is 49.

The spelling of 4057391423623 in words is "four trillion, fifty-seven billion, three hundred ninety-one million, four hundred twenty-three thousand, six hundred twenty-three".