2001977258 has 16 divisors (see below), whose sum is σ = 3045746760. Its totient is φ = 986743296.

The previous prime is 2001977251. The next prime is 2001977281. The reversal of 2001977258 is 8527791002.

It can be written as a sum of positive squares in 4 ways, for example, as 1127414929 + 874562329 = 33577^2 + 29573^2 .

It is not an unprimeable number, because it can be changed into a prime (2001977251) 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, 537908 + ... + 541616.

Almost surely, 2^2001977258 is an apocalyptic number.

2001977258 is a deficient number, since it is larger than the sum of its proper divisors (1043769502).

2001977258 is a wasteful number, since it uses less digits than its factorization.

2001977258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7481.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 2001977258 is about 44743.4605054191. The cubic root of 2001977258 is about 1260.3361113069.

The spelling of 2001977258 in words is "two billion, one million, nine hundred seventy-seven thousand, two hundred fifty-eight".