1629041745 has 16 divisors (see below), whose sum is σ = 2759788800. Its totient is φ = 817714944.

The previous prime is 1629041719. The next prime is 1629041749. The reversal of 1629041745 is 5471409261.

It is not a de Polignac number, because 1629041745 - 2¹¹ = 1629039697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1629041749) 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, 3193945 + ... + 3194454.

It is an arithmetic number, because the mean of its divisors is an integer number (172486800).

Almost surely, 2^1629041745 is an apocalyptic number.

1629041745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1629041745 is a deficient number, since it is larger than the sum of its proper divisors (1130747055).

1629041745 is a wasteful number, since it uses less digits than its factorization.

1629041745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6388424.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1629041745 is about 40361.3892848103. The cubic root of 1629041745 is about 1176.6412543186.

The spelling of 1629041745 in words is "one billion, six hundred twenty-nine million, forty-one thousand, seven hundred forty-five".