1031077855551 has 16 divisors (see below), whose sum is σ = 1388465335296. Its totient is φ = 680541148896.

The previous prime is 1031077855543. The next prime is 1031077855567. The reversal of 1031077855551 is 1555587701301.

It is not a de Polignac number, because 1031077855551 - 2³ = 1031077855543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1031077855551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031077855531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 824266 + ... + 1655768.

It is an arithmetic number, because the mean of its divisors is an integer number (86779083456).

Almost surely, 2^{1031077855551} is an apocalyptic number.

1031077855551 is a deficient number, since it is larger than the sum of its proper divisors (357387479745).

1031077855551 is a wasteful number, since it uses less digits than its factorization.

1031077855551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835622.

The product of its (nonzero) digits is 735000, while the sum is 48.

The spelling of 1031077855551 in words is "one trillion, thirty-one billion, seventy-seven million, eight hundred fifty-five thousand, five hundred fifty-one".