397941354755 has 16 divisors (see below), whose sum is σ = 553224149184. Its totient is φ = 269136069120.

The previous prime is 397941354739. The next prime is 397941354757. The reversal of 397941354755 is 557453149793.

It is a happy number.

It is not a de Polignac number, because 397941354755 - 2⁴ = 397941354739 is a prime.

It is a super-2 number, since 2×397941354755² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (397941354757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77872466 + ... + 77877575.

It is an arithmetic number, because the mean of its divisors is an integer number (34576509324).

Almost surely, 2^397941354755 is an apocalyptic number.

397941354755 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

397941354755 is a deficient number, since it is larger than the sum of its proper divisors (155282794429).

397941354755 is a wasteful number, since it uses less digits than its factorization.

397941354755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155750126.

The product of its digits is 71442000, while the sum is 62.

The spelling of 397941354755 in words is "three hundred ninety-seven billion, nine hundred forty-one million, three hundred fifty-four thousand, seven hundred fifty-five".