377978545 has 8 divisors (see below), whose sum is σ = 518370624. Its totient is φ = 259185264.

The previous prime is 377978521. The next prime is 377978551. The reversal of 377978545 is 545879773.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 377978545 - 2¹³ = 377970353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 5399659 + ... + 5399728.

It is an arithmetic number, because the mean of its divisors is an integer number (64796328).

Almost surely, 2^377978545 is an apocalyptic number.

377978545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

377978545 is a deficient number, since it is larger than the sum of its proper divisors (140392079).

377978545 is a wasteful number, since it uses less digits than its factorization.

377978545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10799399.

The product of its digits is 7408800, while the sum is 55.

The square root of 377978545 is about 19441.6703243317. The cubic root of 377978545 is about 723.0289992048.

The spelling of 377978545 in words is "three hundred seventy-seven million, nine hundred seventy-eight thousand, five hundred forty-five".