29938603642 has 16 divisors (see below), whose sum is σ = 45803390760. Its totient is φ = 14671401472.

The previous prime is 29938603633. The next prime is 29938603787. The reversal of 29938603642 is 24630683992.

It can be written as a sum of positive squares in 4 ways, for example, as 27741900481 + 2196703161 = 166559^2 + 46869^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 29938603642.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47167 + ... + 249202.

Almost surely, 2^29938603642 is an apocalyptic number.

29938603642 is a deficient number, since it is larger than the sum of its proper divisors (15864787118).

29938603642 is a wasteful number, since it uses less digits than its factorization.

29938603642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297377.

The product of its (nonzero) digits is 3359232, while the sum is 52.

The spelling of 29938603642 in words is "twenty-nine billion, nine hundred thirty-eight million, six hundred three thousand, six hundred forty-two".