42949672904 has 8 divisors (see below), whose sum is σ = 80530636710. Its totient is φ = 21474836448.

The previous prime is 42949672903. The next prime is 42949672943. The reversal of 42949672904 is 40927694924.

It can be written as a sum of positive squares in only one way, i.e., 26373110404 + 16576562500 = 162398^2 + 128750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 42949672904.

It is not an unprimeable number, because it can be changed into a prime (42949672903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2684354549 + ... + 2684354564.

Almost surely, 2^42949672904 is an apocalyptic number.

It is an amenable number.

42949672904 is a deficient number, since it is larger than the sum of its proper divisors (37580963806).

42949672904 is a wasteful number, since it uses less digits than its factorization.

42949672904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368709119 (or 5368709115 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 42949672904 in words is "forty-two billion, nine hundred forty-nine million, six hundred seventy-two thousand, nine hundred four".