102038193784 has 24 divisors (see below), whose sum is σ = 199648422360. Its totient is φ = 48798802976.

The previous prime is 102038193721. The next prime is 102038193791. The reversal of 102038193784 is 487391830201.

It is a super-2 number, since 2×102038193784² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4321242 + ... + 4344790.

It is an arithmetic number, because the mean of its divisors is an integer number (8318684265).

Almost surely, 2^102038193784 is an apocalyptic number.

It is an amenable number.

102038193784 is a deficient number, since it is larger than the sum of its proper divisors (97610228576).

102038193784 is an frugal number, since it uses more digits than its factorization.

102038193784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47127 (or 23574 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

Multiplying 102038193784 by its sum of digits (46), we get a square (4693756914064 = 2166508²).

102038193784 divided by its sum of digits (46) gives a square (2218221604 = 47098²).

The spelling of 102038193784 in words is "one hundred two billion, thirty-eight million, one hundred ninety-three thousand, seven hundred eighty-four".