39780029025 has 144 divisors (see below), whose sum is σ = 78797242368. Its totient is φ = 19023984000.

The previous prime is 39780029011. The next prime is 39780029027. The reversal of 39780029025 is 52092008793.

It is not a de Polignac number, because 39780029025 - 2¹¹ = 39780026977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (39780029027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 85181842 + ... + 85182308.

It is an arithmetic number, because the mean of its divisors is an integer number (547203072).

Almost surely, 2^39780029025 is an apocalyptic number.

It is an amenable number.

39780029025 is a deficient number, since it is larger than the sum of its proper divisors (39017213343).

39780029025 is a wasteful number, since it uses less digits than its factorization.

39780029025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 39780029025 in words is "thirty-nine billion, seven hundred eighty million, twenty-nine thousand, twenty-five".