29690391461 has 2 divisors, whose sum is σ = 29690391462. Its totient is φ = 29690391460.

The previous prime is 29690391433. The next prime is 29690391473. The reversal of 29690391461 is 16419309692.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17788890625 + 11901500836 = 133375^2 + 109094^2 .

It is a cyclic number.

It is not a de Polignac number, because 29690391461 - 2²² = 29686197157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29690391491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14845195730 + 14845195731.

It is an arithmetic number, because the mean of its divisors is an integer number (14845195731).

Almost surely, 2^29690391461 is an apocalyptic number.

It is an amenable number.

29690391461 is a deficient number, since it is larger than the sum of its proper divisors (1).

29690391461 is an equidigital number, since it uses as much as digits as its factorization.

29690391461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 50.

The spelling of 29690391461 in words is "twenty-nine billion, six hundred ninety million, three hundred ninety-one thousand, four hundred sixty-one".