1999077552 has 120 divisors (see below), whose sum is σ = 5970364400. Its totient is φ = 622577664.

The previous prime is 1999077539. The next prime is 1999077601. The reversal of 1999077552 is 2557709991.

1999077552 is a `hidden beast` number, since 19 + 9 + 9 + 0 + 77 + 552 = 666.

It is a super-2 number, since 2×1999077552² = 7992622117820625408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 194724 + ... + 204732.

Almost surely, 2^1999077552 is an apocalyptic number.

1999077552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1999077552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2985182200).

1999077552 is an abundant number, since it is smaller than the sum of its proper divisors (3971286848).

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

1999077552 is a wasteful number, since it uses less digits than its factorization.

1999077552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10115 (or 10106 counting only the distinct ones).

The product of its (nonzero) digits is 1786050, while the sum is 54.

The square root of 1999077552 is about 44711.0450783696. The cubic root of 1999077552 is about 1259.7273181651.

The spelling of 1999077552 in words is "one billion, nine hundred ninety-nine million, seventy-seven thousand, five hundred fifty-two".