149821959988694 has 64 divisors (see below), whose sum is σ = 271646687232000. Its totient is φ = 60584460681888.

The previous prime is 149821959988693. The next prime is 149821959988733. The reversal of 149821959988694 is 496889959128941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149821959988693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24941957 + ... + 30360255.

It is an arithmetic number, because the mean of its divisors is an integer number (4244479488000).

Almost surely, 2^{149821959988694} is an apocalyptic number.

149821959988694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

149821959988694 is a deficient number, since it is larger than the sum of its proper divisors (121824727243306).

149821959988694 is a wasteful number, since it uses less digits than its factorization.

149821959988694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5419497.

The product of its digits is 29023764480, while the sum is 92.

The spelling of 149821959988694 in words is "one hundred forty-nine trillion, eight hundred twenty-one billion, nine hundred fifty-nine million, nine hundred eighty-eight thousand, six hundred ninety-four".