1949628877 has 8 divisors (see below), whose sum is σ = 2237472000. Its totient is φ = 1664116944.

The previous prime is 1949628859. The next prime is 1949628959. The reversal of 1949628877 is 7788269491.

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

It is not a de Polignac number, because 1949628877 - 2²⁷ = 1815411149 is a prime.

It is a super-2 number, since 2×1949628877² = 7602105516064562258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949628847) 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, 581002 + ... + 584347.

It is an arithmetic number, because the mean of its divisors is an integer number (279684000).

Almost surely, 2^1949628877 is an apocalyptic number.

It is an amenable number.

1949628877 is a deficient number, since it is larger than the sum of its proper divisors (287843123).

1949628877 is a wasteful number, since it uses less digits than its factorization.

1949628877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165595.

The product of its digits is 12192768, while the sum is 61.

The square root of 1949628877 is about 44154.6019911855. The cubic root of 1949628877 is about 1249.2537149622.

The spelling of 1949628877 in words is "one billion, nine hundred forty-nine million, six hundred twenty-eight thousand, eight hundred seventy-seven".