29902363929 has 9 divisors (see below), whose sum is σ = 43193052799. Its totient is φ = 19934563440.

The previous prime is 29902363927. The next prime is 29902363937. The reversal of 29902363929 is 92936320992.

The square root of 29902363929 is 172923.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 373378329 + 29528985600 = 19323^2 + 171840^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 29902363929 - 2¹ = 29902363927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29902363927) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 489949 + ... + 547589.

Almost surely, 2^29902363929 is an apocalyptic number.

29902363929 is the 172923-rd square number.

29902363929 is the 86462-nd centered octagonal number.

It is an amenable number.

29902363929 is a deficient number, since it is larger than the sum of its proper divisors (13290688870).

29902363929 is an frugal number, since it uses more digits than its factorization.

29902363929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115288 (or 57644 counting only the distinct ones).

The product of its (nonzero) digits is 2834352, while the sum is 54.

The spelling of 29902363929 in words is "twenty-nine billion, nine hundred two million, three hundred sixty-three thousand, nine hundred twenty-nine".