1206381028654 has 4 divisors (see below), whose sum is σ = 1809571542984. Its totient is φ = 603190514326.

The previous prime is 1206381028651. The next prime is 1206381028663. The reversal of 1206381028654 is 4568201836021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206381028651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301595257162 + ... + 301595257165.

It is an arithmetic number, because the mean of its divisors is an integer number (452392885746).

Almost surely, 2^{1206381028654} is an apocalyptic number.

1206381028654 is a deficient number, since it is larger than the sum of its proper divisors (603190514330).

1206381028654 is an equidigital number, since it uses as much as digits as its factorization.

1206381028654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603190514329.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 1206381028654 in words is "one trillion, two hundred six billion, three hundred eighty-one million, twenty-eight thousand, six hundred fifty-four".