197195029740 has 144 divisors (see below), whose sum is σ = 620671457952. Its totient is φ = 52554894336.

The previous prime is 197195029697. The next prime is 197195029751. The reversal of 197195029740 is 47920591791.

197195029740 is a `hidden beast` number, since 1 + 9 + 7 + 1 + 9 + 502 + 97 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9111412 + ... + 9133028.

It is an arithmetic number, because the mean of its divisors is an integer number (4310218458).

Almost surely, 2^197195029740 is an apocalyptic number.

197195029740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197195029740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310335728976).

197195029740 is an abundant number, since it is smaller than the sum of its proper divisors (423476428212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197195029740 is a wasteful number, since it uses less digits than its factorization.

197195029740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23518 (or 23504 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The spelling of 197195029740 in words is "one hundred ninety-seven billion, one hundred ninety-five million, twenty-nine thousand, seven hundred forty".