472737217557155 has 4 divisors (see below), whose sum is σ = 567284661068592. Its totient is φ = 378189774045720.

The previous prime is 472737217557053. The next prime is 472737217557191. The reversal of 472737217557155 is 551755712737274.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-472737217557155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47273721755711 + ... + 47273721755720.

It is an arithmetic number, because the mean of its divisors is an integer number (141821165267148).

Almost surely, 2^{472737217557155} is an apocalyptic number.

472737217557155 is a deficient number, since it is larger than the sum of its proper divisors (94547443511437).

472737217557155 is an equidigital number, since it uses as much as digits as its factorization.

472737217557155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94547443511436.

The product of its digits is 504210000, while the sum is 68.

The spelling of 472737217557155 in words is "four hundred seventy-two trillion, seven hundred thirty-seven billion, two hundred seventeen million, five hundred fifty-seven thousand, one hundred fifty-five".