1004151012551 has 4 divisors (see below), whose sum is σ = 1028642500704. Its totient is φ = 979659524400.

The previous prime is 1004151012509. The next prime is 1004151012559. The reversal of 1004151012551 is 1552101514001.

It is a happy number.

1004151012551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004151012551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1004151012551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004151012559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12245744015 + ... + 12245744096.

It is an arithmetic number, because the mean of its divisors is an integer number (257160625176).

Almost surely, 2^{1004151012551} is an apocalyptic number.

1004151012551 is a deficient number, since it is larger than the sum of its proper divisors (24491488153).

1004151012551 is an equidigital number, since it uses as much as digits as its factorization.

1004151012551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24491488152.

The product of its (nonzero) digits is 1000, while the sum is 26.

Adding to 1004151012551 its reverse (1552101514001), we get a palindrome (2556252526552).

The spelling of 1004151012551 in words is "one trillion, four billion, one hundred fifty-one million, twelve thousand, five hundred fifty-one".