1258403492020 has 24 divisors (see below), whose sum is σ = 2644589085768. Its totient is φ = 502991539200.

The previous prime is 1258403492011. The next prime is 1258403492029. The reversal of 1258403492020 is 202943048521.

It is an interprime number because it is at equal distance from previous prime (1258403492011) and next prime (1258403492029).

It can be written as a sum of positive squares in 4 ways, for example, as 231095564176 + 1027307927844 = 480724^2 + 1013562^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258403492029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23088201 + ... + 23142640.

It is an arithmetic number, because the mean of its divisors is an integer number (110191211907).

Almost surely, 2^{1258403492020} is an apocalyptic number.

1258403492020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1258403492020 is an abundant number, since it is smaller than the sum of its proper divisors (1386185593748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1258403492020 is a wasteful number, since it uses less digits than its factorization.

1258403492020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46232211 (or 46232209 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 1258403492020 in words is "one trillion, two hundred fifty-eight billion, four hundred three million, four hundred ninety-two thousand, twenty".