1377989043 has 8 divisors (see below), whose sum is σ = 1945396368. Its totient is φ = 864620544.

The previous prime is 1377988981. The next prime is 1377989069. The reversal of 1377989043 is 3409897731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1377989043 - 2⁶ = 1377988979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 27019393 = 1377989043 / (1 + 3 + 7 + 7 + 9 + 8 + 9 + 0 + 4 + 3).

It is not an unprimeable number, because it can be changed into a prime (1377987043) 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, 13509646 + ... + 13509747.

It is an arithmetic number, because the mean of its divisors is an integer number (243174546).

Almost surely, 2^1377989043 is an apocalyptic number.

1377989043 is a deficient number, since it is larger than the sum of its proper divisors (567407325).

1377989043 is a wasteful number, since it uses less digits than its factorization.

1377989043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27019413.

The product of its (nonzero) digits is 1143072, while the sum is 51.

The square root of 1377989043 is about 37121.2748030021. The cubic root of 1377989043 is about 1112.7952284350.

The spelling of 1377989043 in words is "one billion, three hundred seventy-seven million, nine hundred eighty-nine thousand, forty-three".