72963778351 has 2 divisors, whose sum is σ = 72963778352. Its totient is φ = 72963778350.

The previous prime is 72963778231. The next prime is 72963778403. The reversal of 72963778351 is 15387736927.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72963778351 - 2²³ = 72955389743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72963778051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36481889175 + 36481889176.

It is an arithmetic number, because the mean of its divisors is an integer number (36481889176).

Almost surely, 2^72963778351 is an apocalyptic number.

72963778351 is a deficient number, since it is larger than the sum of its proper divisors (1).

72963778351 is an equidigital number, since it uses as much as digits as its factorization.

72963778351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13335840, while the sum is 58.

The spelling of 72963778351 in words is "seventy-two billion, nine hundred sixty-three million, seven hundred seventy-eight thousand, three hundred fifty-one".