102381953494 has 4 divisors (see below), whose sum is σ = 153572930244. Its totient is φ = 51190976746.

The previous prime is 102381953483. The next prime is 102381953507. The reversal of 102381953494 is 494359183201.

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

It is a super-3 number, since 3×102381953494³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25595488372 + ... + 25595488375.

It is an arithmetic number, because the mean of its divisors is an integer number (38393232561).

Almost surely, 2^102381953494 is an apocalyptic number.

102381953494 is a deficient number, since it is larger than the sum of its proper divisors (51190976750).

102381953494 is an equidigital number, since it uses as much as digits as its factorization.

102381953494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51190976749.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 102381953494 in words is "one hundred two billion, three hundred eighty-one million, nine hundred fifty-three thousand, four hundred ninety-four".