29797977730 has 16 divisors (see below), whose sum is σ = 54545451840. Its totient is φ = 11717170672.

The previous prime is 29797977667. The next prime is 29797977739. The reversal of 29797977730 is 3777979792.

It is not an unprimeable number, because it can be changed into a prime (29797977739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25251934 + ... + 25253113.

It is an arithmetic number, because the mean of its divisors is an integer number (3409090740).

Almost surely, 2^29797977730 is an apocalyptic number.

29797977730 is a deficient number, since it is larger than the sum of its proper divisors (24747474110).

29797977730 is a wasteful number, since it uses less digits than its factorization.

29797977730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50505113.

The product of its (nonzero) digits is 73513818, while the sum is 67.

The spelling of 29797977730 in words is "twenty-nine billion, seven hundred ninety-seven million, nine hundred seventy-seven thousand, seven hundred thirty".