210990506967 has 32 divisors (see below), whose sum is σ = 325825632000. Its totient is φ = 134773198560.

The previous prime is 210990506939. The next prime is 210990507017. The reversal of 210990506967 is 769605099012.

It is not a de Polignac number, because 210990506967 - 2¹⁴ = 210990490583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210990506927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 925917 + ... + 1131062.

It is an arithmetic number, because the mean of its divisors is an integer number (10182051000).

Almost surely, 2^210990506967 is an apocalyptic number.

210990506967 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

210990506967 is a deficient number, since it is larger than the sum of its proper divisors (114835125033).

210990506967 is a wasteful number, since it uses less digits than its factorization.

210990506967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057148 (or 2057142 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The spelling of 210990506967 in words is "two hundred ten billion, nine hundred ninety million, five hundred six thousand, nine hundred sixty-seven".