1253778358462 has 12 divisors (see below), whose sum is σ = 2187715299120. Its totient is φ = 537333582156.

The previous prime is 1253778358451. The next prime is 1253778358501. The reversal of 1253778358462 is 2648538773521.

It is a self number, because there is not a number n which added to its sum of digits gives 1253778358462.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6396828262 + ... + 6396828457.

It is an arithmetic number, because the mean of its divisors is an integer number (182309608260).

Almost surely, 2^{1253778358462} is an apocalyptic number.

1253778358462 is a deficient number, since it is larger than the sum of its proper divisors (933936940658).

1253778358462 is a wasteful number, since it uses less digits than its factorization.

1253778358462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12793656735 (or 12793656728 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 61.

The spelling of 1253778358462 in words is "one trillion, two hundred fifty-three billion, seven hundred seventy-eight million, three hundred fifty-eight thousand, four hundred sixty-two".