157894984651 has 4 divisors (see below), whose sum is σ = 157905842904. Its totient is φ = 157884126400.

The previous prime is 157894984649. The next prime is 157894984661. The reversal of 157894984651 is 156489498751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156489498751 = 487 ⋅321333673.

It is a cyclic number.

It is not a de Polignac number, because 157894984651 - 2¹ = 157894984649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157894984661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5407285 + ... + 5436406.

It is an arithmetic number, because the mean of its divisors is an integer number (39476460726).

Almost surely, 2^157894984651 is an apocalyptic number.

157894984651 is a deficient number, since it is larger than the sum of its proper divisors (10858253).

157894984651 is a wasteful number, since it uses less digits than its factorization.

157894984651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10858252.

The product of its digits is 87091200, while the sum is 67.

The spelling of 157894984651 in words is "one hundred fifty-seven billion, eight hundred ninety-four million, nine hundred eighty-four thousand, six hundred fifty-one".