1011864950 has 72 divisors (see below), whose sum is σ = 2021098320. Its totient is φ = 376747200.

The previous prime is 1011864947. The next prime is 1011864961. The reversal of 1011864950 is 594681101.

It is a self number, because there is not a number n which added to its sum of digits gives 1011864950.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1100591 + ... + 1101509.

It is an arithmetic number, because the mean of its divisors is an integer number (28070810).

Almost surely, 2^1011864950 is an apocalyptic number.

1011864950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011864950 is a deficient number, since it is larger than the sum of its proper divisors (1009233370).

1011864950 is a wasteful number, since it uses less digits than its factorization.

1011864950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 1011864950 is about 31809.8247401648. The cubic root of 1011864950 is about 1003.9394437373.

The spelling of 1011864950 in words is "one billion, eleven million, eight hundred sixty-four thousand, nine hundred fifty".