1004645612451 has 16 divisors (see below), whose sum is σ = 1460828418560. Its totient is φ = 610417585440.

The previous prime is 1004645612387. The next prime is 1004645612489. The reversal of 1004645612451 is 1542165464001.

It is not a de Polignac number, because 1004645612451 - 2⁶ = 1004645612387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004645612491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163035805 + ... + 163041966.

It is an arithmetic number, because the mean of its divisors is an integer number (91301776160).

Almost surely, 2^{1004645612451} is an apocalyptic number.

1004645612451 is a deficient number, since it is larger than the sum of its proper divisors (456182806109).

1004645612451 is a wasteful number, since it uses less digits than its factorization.

1004645612451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326077866.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 1004645612451 in words is "one trillion, four billion, six hundred forty-five million, six hundred twelve thousand, four hundred fifty-one".