36771972551 has 2 divisors, whose sum is σ = 36771972552. Its totient is φ = 36771972550.

The previous prime is 36771972533. The next prime is 36771972571. The reversal of 36771972551 is 15527917763.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36771972551 - 2¹⁰ = 36771971527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36771972493 and 36771972502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36771972521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18385986275 + 18385986276.

It is an arithmetic number, because the mean of its divisors is an integer number (18385986276).

Almost surely, 2^36771972551 is an apocalyptic number.

36771972551 is a deficient number, since it is larger than the sum of its proper divisors (1).

36771972551 is an equidigital number, since it uses as much as digits as its factorization.

36771972551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2778300, while the sum is 53.

The spelling of 36771972551 in words is "thirty-six billion, seven hundred seventy-one million, nine hundred seventy-two thousand, five hundred fifty-one".