1042256361064 has 16 divisors (see below), whose sum is σ = 1954243504800. Its totient is φ = 521124759792.

The previous prime is 1042256361061. The next prime is 1042256361071. The reversal of 1042256361064 is 4601636522401.

It is a super-2 number, since 2×1042256361064² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1042256361061) 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, 1258357 + ... + 1915195.

It is an arithmetic number, because the mean of its divisors is an integer number (122140219050).

Almost surely, 2^{1042256361064} is an apocalyptic number.

It is an amenable number.

1042256361064 is a deficient number, since it is larger than the sum of its proper divisors (911987143736).

1042256361064 is a wasteful number, since it uses less digits than its factorization.

1042256361064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855192 (or 855188 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 1042256361064 in words is "one trillion, forty-two billion, two hundred fifty-six million, three hundred sixty-one thousand, sixty-four".