2147788854731 has 8 divisors (see below), whose sum is σ = 2366794158960. Its totient is φ = 1936467947232.

The previous prime is 2147788854727. The next prime is 2147788854793. The reversal of 2147788854731 is 1374588877412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2147788854731 - 2² = 2147788854727 is a prime.

It is a super-2 number, since 2×2147788854731² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2147788854931) 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 in 7 ways as a sum of consecutive naturals, for example, 1921098596 + ... + 1921099713.

It is an arithmetic number, because the mean of its divisors is an integer number (295849269870).

Almost surely, 2^{2147788854731} is an apocalyptic number.

2147788854731 is a deficient number, since it is larger than the sum of its proper divisors (219005304229).

2147788854731 is a wasteful number, since it uses less digits than its factorization.

2147788854731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842198365.

The product of its digits is 84295680, while the sum is 65.

The spelling of 2147788854731 in words is "two trillion, one hundred forty-seven billion, seven hundred eighty-eight million, eight hundred fifty-four thousand, seven hundred thirty-one".