377818929489 has 4 divisors (see below), whose sum is σ = 503758572656. Its totient is φ = 251879286324.

The previous prime is 377818929473. The next prime is 377818929511. The reversal of 377818929489 is 984929818773.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 984929818773 = 3 ⋅328309939591.

It is not a de Polignac number, because 377818929489 - 2⁴ = 377818929473 is a prime.

It is a super-2 number, since 2×377818929489² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 377818929489.

It is not an unprimeable number, because it can be changed into a prime (377818929689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62969821579 + ... + 62969821584.

It is an arithmetic number, because the mean of its divisors is an integer number (125939643164).

Almost surely, 2^377818929489 is an apocalyptic number.

It is an amenable number.

377818929489 is a deficient number, since it is larger than the sum of its proper divisors (125939643167).

377818929489 is a wasteful number, since it uses less digits than its factorization.

377818929489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125939643166.

The product of its digits is 438939648, while the sum is 75.

The spelling of 377818929489 in words is "three hundred seventy-seven billion, eight hundred eighteen million, nine hundred twenty-nine thousand, four hundred eighty-nine".