10621762261 has 32 divisors (see below), whose sum is σ = 12505996800. Its totient is φ = 8917231680.

The previous prime is 10621762259. The next prime is 10621762279. The reversal of 10621762261 is 16226712601.

It is a cyclic number.

It is not a de Polignac number, because 10621762261 - 2¹ = 10621762259 is a prime.

It is a super-2 number, since 2×10621762261² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10621762201) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 6370950 + ... + 6372616.

It is an arithmetic number, because the mean of its divisors is an integer number (390812400).

Almost surely, 2^10621762261 is an apocalyptic number.

10621762261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10621762261 is a deficient number, since it is larger than the sum of its proper divisors (1884234539).

10621762261 is a wasteful number, since it uses less digits than its factorization.

10621762261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 10621762261 in words is "ten billion, six hundred twenty-one million, seven hundred sixty-two thousand, two hundred sixty-one".