1087634888738 has 4 divisors (see below), whose sum is σ = 1631452333110. Its totient is φ = 543817444368.

The previous prime is 1087634888699. The next prime is 1087634888771. The reversal of 1087634888738 is 8378884367801.

1087634888738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 847381004089 + 240253884649 = 920533^2 + 490157^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271908722183 + ... + 271908722186.

Almost surely, 2^{1087634888738} is an apocalyptic number.

1087634888738 is a deficient number, since it is larger than the sum of its proper divisors (543817444372).

1087634888738 is an equidigital number, since it uses as much as digits as its factorization.

1087634888738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543817444371.

The product of its (nonzero) digits is 346816512, while the sum is 71.

The spelling of 1087634888738 in words is "one trillion, eighty-seven billion, six hundred thirty-four million, eight hundred eighty-eight thousand, seven hundred thirty-eight".