29690391479 has 16 divisors (see below), whose sum is σ = 34662739968. Its totient is φ = 24901037952.

The previous prime is 29690391473. The next prime is 29690391491. The reversal of 29690391479 is 97419309692.

It is not a de Polignac number, because 29690391479 - 2²⁴ = 29673614263 is a prime.

It is a super-3 number, since 3×29690391479³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29690391473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1617119 + ... + 1635375.

It is an arithmetic number, because the mean of its divisors is an integer number (2166421248).

Almost surely, 2^29690391479 is an apocalyptic number.

29690391479 is a deficient number, since it is larger than the sum of its proper divisors (4972348489).

29690391479 is a wasteful number, since it uses less digits than its factorization.

29690391479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23254.

The product of its (nonzero) digits is 6613488, while the sum is 59.

The spelling of 29690391479 in words is "twenty-nine billion, six hundred ninety million, three hundred ninety-one thousand, four hundred seventy-nine".