1053261163778 has 8 divisors (see below), whose sum is σ = 1580822741772. Its totient is φ = 526320249856.

The previous prime is 1053261163777. The next prime is 1053261163819. The reversal of 1053261163778 is 8773611623501.

1053261163778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 724614645049 + 328646518729 = 851243^2 + 573277^2 .

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

It is a super-2 number, since 2×1053261163778² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1053261163777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155161775 + ... + 155168562.

Almost surely, 2^{1053261163778} is an apocalyptic number.

1053261163778 is a deficient number, since it is larger than the sum of its proper divisors (527561577994).

1053261163778 is a wasteful number, since it uses less digits than its factorization.

1053261163778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310332036.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 1053261163778 in words is "one trillion, fifty-three billion, two hundred sixty-one million, one hundred sixty-three thousand, seven hundred seventy-eight".