1927678480 has 80 divisors (see below), whose sum is σ = 5516146944. Its totient is φ = 610076160.

The previous prime is 1927678477. The next prime is 1927678523. The reversal of 1927678480 is 848767291.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1927678480² = 7431888644510220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125116 + ... + 139675.

Almost surely, 2^1927678480 is an apocalyptic number.

1927678480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1927678480 is an abundant number, since it is smaller than the sum of its proper divisors (3588468464).

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

1927678480 is a wasteful number, since it uses less digits than its factorization.

1927678480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264824 (or 264818 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 52.

The square root of 1927678480 is about 43905.3354388735. The cubic root of 1927678480 is about 1244.5476612469.

The spelling of 1927678480 in words is "one billion, nine hundred twenty-seven million, six hundred seventy-eight thousand, four hundred eighty".