4034985837545 has 32 divisors (see below), whose sum is σ = 5356059351552. Its totient is φ = 2898778966272.

The previous prime is 4034985837511. The next prime is 4034985837557. The reversal of 4034985837545 is 5457385894304.

It is a cyclic number.

It is not a de Polignac number, because 4034985837545 - 2²⁰ = 4034984788969 is a prime.

It is a super-2 number, since 2×4034985837545² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a Curzon number.

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, 19432544 + ... + 19639086.

It is an arithmetic number, because the mean of its divisors is an integer number (167376854736).

Almost surely, 2^{4034985837545} is an apocalyptic number.

It is an amenable number.

4034985837545 is a deficient number, since it is larger than the sum of its proper divisors (1321073514007).

4034985837545 is a wasteful number, since it uses less digits than its factorization.

4034985837545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214721.

The product of its (nonzero) digits is 290304000, while the sum is 65.

The spelling of 4034985837545 in words is "four trillion, thirty-four billion, nine hundred eighty-five million, eight hundred thirty-seven thousand, five hundred forty-five".