1377781062540 has 24 divisors (see below), whose sum is σ = 3857786975280. Its totient is φ = 367408283328.

The previous prime is 1377781062533. The next prime is 1377781062547. The reversal of 1377781062540 is 452601877731.

It is an interprime number because it is at equal distance from previous prime (1377781062533) and next prime (1377781062547).

It is not an unprimeable number, because it can be changed into a prime (1377781062547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11481508795 + ... + 11481508914.

It is an arithmetic number, because the mean of its divisors is an integer number (160741123970).

Almost surely, 2^{1377781062540} is an apocalyptic number.

1377781062540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1377781062540 is an abundant number, since it is smaller than the sum of its proper divisors (2480005912740).

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

1377781062540 is a wasteful number, since it uses less digits than its factorization.

1377781062540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22963017721 (or 22963017719 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 51.

The spelling of 1377781062540 in words is "one trillion, three hundred seventy-seven billion, seven hundred eighty-one million, sixty-two thousand, five hundred forty".