1427776552540 has 24 divisors (see below), whose sum is σ = 3228971588640. Its totient is φ = 527179034688.

The previous prime is 1427776552523. The next prime is 1427776552541. The reversal of 1427776552540 is 452556777241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427776552541) 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, 2745723880 + ... + 2745724399.

It is an arithmetic number, because the mean of its divisors is an integer number (134540482860).

Almost surely, 2^{1427776552540} is an apocalyptic number.

1427776552540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1427776552540 is an abundant number, since it is smaller than the sum of its proper divisors (1801195036100).

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

1427776552540 is a wasteful number, since it uses less digits than its factorization.

1427776552540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491448301 (or 5491448299 counting only the distinct ones).

The product of its (nonzero) digits is 16464000, while the sum is 55.

The spelling of 1427776552540 in words is "one trillion, four hundred twenty-seven billion, seven hundred seventy-six million, five hundred fifty-two thousand, five hundred forty".