29874946651 has 32 divisors (see below), whose sum is σ = 34916930496. Its totient is φ = 25259520000.

The previous prime is 29874946637. The next prime is 29874946693. The reversal of 29874946651 is 15664947892.

It is a happy number.

It is not a de Polignac number, because 29874946651 - 2⁷ = 29874946523 is a prime.

It is a super-2 number, since 2×29874946651² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29874946651.

It is not an unprimeable number, because it can be changed into a prime (29874946631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12483111 + ... + 12485503.

It is an arithmetic number, because the mean of its divisors is an integer number (1091154078).

Almost surely, 2^29874946651 is an apocalyptic number.

29874946651 is a deficient number, since it is larger than the sum of its proper divisors (5041983845).

29874946651 is a wasteful number, since it uses less digits than its factorization.

29874946651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183.

The product of its digits is 26127360, while the sum is 61.

The spelling of 29874946651 in words is "twenty-nine billion, eight hundred seventy-four million, nine hundred forty-six thousand, six hundred fifty-one".