154069355494 has 4 divisors (see below), whose sum is σ = 231104033244. Its totient is φ = 77034677746.

The previous prime is 154069355491. The next prime is 154069355501. The reversal of 154069355494 is 494553960451.

It is a happy number.

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 (154069355491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38517338872 + ... + 38517338875.

It is an arithmetic number, because the mean of its divisors is an integer number (57776008311).

Almost surely, 2^154069355494 is an apocalyptic number.

154069355494 is a deficient number, since it is larger than the sum of its proper divisors (77034677750).

154069355494 is an equidigital number, since it uses as much as digits as its factorization.

154069355494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77034677749.

The product of its (nonzero) digits is 11664000, while the sum is 55.

The spelling of 154069355494 in words is "one hundred fifty-four billion, sixty-nine million, three hundred fifty-five thousand, four hundred ninety-four".