15477994067 has 2 divisors, whose sum is σ = 15477994068. Its totient is φ = 15477994066.

The previous prime is 15477993991. The next prime is 15477994121. The reversal of 15477994067 is 76049977451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15477994067 - 2²² = 15473799763 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15477993997 and 15477994015.

It is not a weakly prime, because it can be changed into another prime (15477993067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7738997033 + 7738997034.

It is an arithmetic number, because the mean of its divisors is an integer number (7738997034).

Almost surely, 2^15477994067 is an apocalyptic number.

15477994067 is a deficient number, since it is larger than the sum of its proper divisors (1).

15477994067 is an equidigital number, since it uses as much as digits as its factorization.

15477994067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13335840, while the sum is 59.

The spelling of 15477994067 in words is "fifteen billion, four hundred seventy-seven million, nine hundred ninety-four thousand, sixty-seven".