1270381986854 has 16 divisors (see below), whose sum is σ = 1909594769568. Its totient is φ = 633850546752.

The previous prime is 1270381986851. The next prime is 1270381986857. The reversal of 1270381986854 is 4586891830721.

It is an interprime number because it is at equal distance from previous prime (1270381986851) and next prime (1270381986857).

It is a super-2 number, since 2×1270381986854² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270381986851) 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, 27538232 + ... + 27584324.

It is an arithmetic number, because the mean of its divisors is an integer number (119349673098).

It is a 1-persistent number, because it is pandigital, but 2⋅1270381986854 = 2540763973708 is not.

Almost surely, 2^{1270381986854} is an apocalyptic number.

1270381986854 is a deficient number, since it is larger than the sum of its proper divisors (639212782714).

1270381986854 is a wasteful number, since it uses less digits than its factorization.

1270381986854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74879.

The product of its (nonzero) digits is 23224320, while the sum is 62.

The spelling of 1270381986854 in words is "one trillion, two hundred seventy billion, three hundred eighty-one million, nine hundred eighty-six thousand, eight hundred fifty-four".