425723732021455 has 64 divisors (see below), whose sum is σ = 604831488307200. Its totient is φ = 281462524761600.

The previous prime is 425723732021363. The next prime is 425723732021557. The reversal of 425723732021455 is 554120237327524.

It is a de Polignac number, because none of the positive numbers 2^k-425723732021455 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2090273416 + ... + 2090477074.

It is an arithmetic number, because the mean of its divisors is an integer number (9450492004800).

Almost surely, 2^{425723732021455} is an apocalyptic number.

425723732021455 is a deficient number, since it is larger than the sum of its proper divisors (179107756285745).

425723732021455 is a wasteful number, since it uses less digits than its factorization.

425723732021455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206584.

The product of its (nonzero) digits is 14112000, while the sum is 52.

Adding to 425723732021455 its reverse (554120237327524), we get a palindrome (979843969348979).

The spelling of 425723732021455 in words is "four hundred twenty-five trillion, seven hundred twenty-three billion, seven hundred thirty-two million, twenty-one thousand, four hundred fifty-five".