7987426134 has 32 divisors (see below), whose sum is σ = 16439712000. Its totient is φ = 2585289312.

The previous prime is 7987426121. The next prime is 7987426147. The reversal of 7987426134 is 4316247897.

It is an interprime number because it is at equal distance from previous prime (7987426121) and next prime (7987426147).

It is a super-2 number, since 2×7987426134² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74727 + ... + 146829.

It is an arithmetic number, because the mean of its divisors is an integer number (513741000).

Almost surely, 2^7987426134 is an apocalyptic number.

7987426134 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

7987426134 is an abundant number, since it is smaller than the sum of its proper divisors (8452285866).

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

7987426134 is a wasteful number, since it uses less digits than its factorization.

7987426134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72644.

The product of its digits is 2032128, while the sum is 51.

The square root of 7987426134 is about 89372.4014111739. The cubic root of 7987426134 is about 1998.9516283878.

The spelling of 7987426134 in words is "seven billion, nine hundred eighty-seven million, four hundred twenty-six thousand, one hundred thirty-four".