11428420587 has 8 divisors (see below), whose sum is σ = 15238388736. Its totient is φ = 7618699752.

The previous prime is 11428420571. The next prime is 11428420603. The reversal of 11428420587 is 78502482411.

It is an interprime number because it is at equal distance from previous prime (11428420571) and next prime (11428420603).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11428420587 - 2⁴ = 11428420571 is a prime.

It is a super-2 number, since 2×11428420587² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11428422587) 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, 141898 + ... + 207344.

It is an arithmetic number, because the mean of its divisors is an integer number (1904798592).

Almost surely, 2^11428420587 is an apocalyptic number.

11428420587 is a deficient number, since it is larger than the sum of its proper divisors (3809968149).

11428420587 is an equidigital number, since it uses as much as digits as its factorization.

11428420587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123657.

The product of its (nonzero) digits is 143360, while the sum is 42.

The spelling of 11428420587 in words is "eleven billion, four hundred twenty-eight million, four hundred twenty thousand, five hundred eighty-seven".