1623910571045 has 16 divisors (see below), whose sum is σ = 2227355741568. Its totient is φ = 1113399483840.

The previous prime is 1623910571011. The next prime is 1623910571057. The reversal of 1623910571045 is 5401750193261.

It is not a de Polignac number, because 1623910571045 - 2¹⁴ = 1623910554661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1623910570987 and 1623910571005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2615474 + ... + 3176243.

It is an arithmetic number, because the mean of its divisors is an integer number (139209733848).

Almost surely, 2^{1623910571045} is an apocalyptic number.

It is an amenable number.

1623910571045 is a deficient number, since it is larger than the sum of its proper divisors (603445170523).

1623910571045 is an equidigital number, since it uses as much as digits as its factorization.

1623910571045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5799740.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 1623910571045 in words is "one trillion, six hundred twenty-three billion, nine hundred ten million, five hundred seventy-one thousand, forty-five".