1087654255765 has 16 divisors (see below), whose sum is σ = 1627243770240. Its totient is φ = 678018237120.

The previous prime is 1087654255763. The next prime is 1087654255777. The reversal of 1087654255765 is 5675524567801.

It is not a de Polignac number, because 1087654255765 - 2¹ = 1087654255763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087654255763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1412537610 + ... + 1412538379.

It is an arithmetic number, because the mean of its divisors is an integer number (101702735640).

Almost surely, 2^{1087654255765} is an apocalyptic number.

It is an amenable number.

1087654255765 is a deficient number, since it is larger than the sum of its proper divisors (539589514475).

1087654255765 is a wasteful number, since it uses less digits than its factorization.

1087654255765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825076012.

The product of its (nonzero) digits is 70560000, while the sum is 61.

The spelling of 1087654255765 in words is "one trillion, eighty-seven billion, six hundred fifty-four million, two hundred fifty-five thousand, seven hundred sixty-five".