405226315545 has 32 divisors (see below), whose sum is σ = 658175569920. Its totient is φ = 212855858880.

The previous prime is 405226315469. The next prime is 405226315597. The reversal of 405226315545 is 545513622504.

It is not a de Polignac number, because 405226315545 - 2¹² = 405226311449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405226315497 and 405226315506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 833116 + ... + 1226594.

It is an arithmetic number, because the mean of its divisors is an integer number (20567986560).

Almost surely, 2^405226315545 is an apocalyptic number.

It is an amenable number.

405226315545 is a deficient number, since it is larger than the sum of its proper divisors (252949254375).

405226315545 is a wasteful number, since it uses less digits than its factorization.

405226315545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394525.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 405226315545 in words is "four hundred five billion, two hundred twenty-six million, three hundred fifteen thousand, five hundred forty-five".