260751511890 has 48 divisors (see below), whose sum is σ = 680790614400. Its totient is φ = 69242794656.

The previous prime is 260751511861. The next prime is 260751511919. The reversal of 260751511890 is 98115157062.

260751511890 is a `hidden beast` number, since 2 + 6 + 0 + 7 + 51 + 511 + 89 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (260751511861) and next prime (260751511919).

It is a super-2 number, since 2×260751511890² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 6039660 + ... + 6082679.

It is an arithmetic number, because the mean of its divisors is an integer number (14183137800).

Almost surely, 2^260751511890 is an apocalyptic number.

260751511890 is an abundant number, since it is smaller than the sum of its proper divisors (420039102510).

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

260751511890 is a wasteful number, since it uses less digits than its factorization.

260751511890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12122591 (or 12122588 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 45.

It can be divided in two parts, 260751 and 511890, that added together give a square (772641 = 879²).

The spelling of 260751511890 in words is "two hundred sixty billion, seven hundred fifty-one million, five hundred eleven thousand, eight hundred ninety".