32464021951 has 2 divisors, whose sum is σ = 32464021952. Its totient is φ = 32464021950.

The previous prime is 32464021949. The next prime is 32464021979. The reversal of 32464021951 is 15912046423.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32464021951 - 2¹ = 32464021949 is a prime.

Together with 32464021949, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 32464021951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32464021901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16232010975 + 16232010976.

It is an arithmetic number, because the mean of its divisors is an integer number (16232010976).

Almost surely, 2^32464021951 is an apocalyptic number.

32464021951 is a deficient number, since it is larger than the sum of its proper divisors (1).

32464021951 is an equidigital number, since it uses as much as digits as its factorization.

32464021951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 32464021951 in words is "thirty-two billion, four hundred sixty-four million, twenty-one thousand, nine hundred fifty-one".