1633752645 has 16 divisors (see below), whose sum is σ = 2987433600. Its totient is φ = 746858304.

The previous prime is 1633752643. The next prime is 1633752697. The reversal of 1633752645 is 5462573361.

It is not a de Polignac number, because 1633752645 - 2¹ = 1633752643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1633752597 and 1633752606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1633752643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7779670 + ... + 7779879.

It is an arithmetic number, because the mean of its divisors is an integer number (186714600).

Almost surely, 2^1633752645 is an apocalyptic number.

1633752645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1633752645 is a deficient number, since it is larger than the sum of its proper divisors (1353680955).

1633752645 is a wasteful number, since it uses less digits than its factorization.

1633752645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15559564.

The product of its digits is 453600, while the sum is 42.

The square root of 1633752645 is about 40419.7061468784. The cubic root of 1633752645 is about 1177.7743754121.

The spelling of 1633752645 in words is "one billion, six hundred thirty-three million, seven hundred fifty-two thousand, six hundred forty-five".